alpha-Mannosidase
Swainsonine
1-Deoxynojirimycin
Oligosaccharides
Mannose
Golgi Apparatus
Polysaccharides
Alkaloids
Mannosidase Deficiency Diseases
Interleukin-1beta
Indolizines
Endoplasmic Reticulum
Carbohydrate Sequence
Mannosyl-Glycoprotein Endo-beta-N-Acetylglucosaminidase
Glycoproteins
Glycosylation
Glucosamine
beta 2-Microglobulin
Pichia
Molecular Sequence Data
Asparagine
Receptors, Adrenergic, beta
Integrin beta3
N-Acetylglucosaminyltransferases
Substrate Specificity
alpha-Glucosidases
Brefeldin A
Hexosaminidases
Glycoside Hydrolases
Acetylglucosaminidase
Monensin
Immunosorbent Techniques
Base Sequence
Protein Processing, Post-Translational
Transforming Growth Factor beta
Amino Acid Sequence
alpha 1-Antitrypsin
Intracellular Membranes
Cloning, Molecular
Cricetinae
Coat Protein Complex I
Cells, Cultured
Liver
Chromatography
Galactosyltransferases
Integrin alpha5beta1
Integrin beta4
DNA, Complementary
Integrin alpha6beta4
Integrin beta Chains
beta 2-Glycoprotein I
Membrane Proteins
Integrin alpha4beta1
Cell Compartmentation
Tunicamycin
Integrin alpha2beta1
Receptors, Adrenergic, beta-2
Enzyme Inhibitors
CHO Cells
Sequence Homology, Amino Acid
Microsomes, Liver
Transfection
Mannosyltransferases
Integrins
Octoxynol
Interleukin-1
Antigens, CD29
Integrin alpha6beta1
Lysosomes
Cell Fractionation
Fluorescent Antibody Technique
Cations, Divalent
Proteasome Endopeptidase Complex
Receptors, Adrenergic, beta-1
Binding Sites
Protein Transport
Rats, Inbred Strains
Cytosol
Integrin alpha1beta1
Electrophoresis, Polyacrylamide Gel
Mutation
Glycogen Synthase Kinase 3
RNA, Messenger
Cell Membrane
Estrogen Receptor beta
Glycopeptides
Rabbits
Recombinant Fusion Proteins
Transforming Growth Factor beta1
DNA Primers
Gene Expression
Biological Transport
Saccharomyces cerevisiae
Structure-Activity Relationship
Hydrogen-Ion Concentration
Isoenzymes
Swine
Tumor Cells, Cultured
Peptide Fragments
Receptors, Adrenergic, beta-3
Signal Transduction
Chromatography, High Pressure Liquid
Kidney
Spodoptera
Cattle
Solubility
Beta Rhythm
Cysteine Endopeptidases
Multienzyme Complexes
Polymerase Chain Reaction
HeLa Cells
Disulfides
Fibroblasts
DNA Polymerase beta
beta Catenin
Sequence Alignment
Chromatography, Ion Exchange
Gene Library
Receptors, Transforming Growth Factor beta
Microscopy, Electron
Macromolecular Substances
Viral Envelope Proteins
Gene Expression Regulation
Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
Propanolamines
Receptors, Vitronectin
Mice, Inbred C57BL
Dogs
Phosphorylation
Protein Subunits
beta Karyopherins
Phospholipase C beta
Mice, Knockout
Adrenergic beta-Antagonists
Fibronectins
Dose-Response Relationship, Drug
Hepatocyte Nuclear Factor 3-beta
Blotting, Western
Protein Conformation
Integrin alphaVbeta3
Cytokines
Tumor Necrosis Factor-alpha
Insulin-Secreting Cells
Receptors, Nicotinic
Molecular cloning, sequencing, and expression of a novel multidomain mannanase gene from Thermoanaerobacterium polysaccharolyticum. (1/115)
The manA gene of Thermoanaerobacterium polysaccharolyticum was cloned in Escherichia coli. The open reading frame of manA is composed of 3,291 bases and codes for a preprotein of 1,097 amino acids with an estimated molecular mass of 119,627 Da. The start codon is preceded by a strong putative ribosome binding site (TAAGGCGGTG) and a putative -35 (TTCGC) and -10 (TAAAAT) promoter sequence. The ManA of T. polysaccharolyticum is a modular protein. Sequence comparison and biochemical analyses demonstrate the presence of an N-terminal leader peptide, and three other domains in the following order: a putative mannanase-cellulase catalytic domain, cellulose binding domains 1 (CBD1) and CBD2, and a surface-layer-like protein region (SLH-1, SLH-2, and SLH-3). The CBD domains show no sequence homology to any cellulose binding domain yet reported, hence suggesting a novel CBD. The duplicated CBDs, which lack a disulfide bridge, exhibit 69% identity, and their deletion resulted in both failure to bind to cellulose and an apparent loss of carboxymethyl cellulase and mannanase activities. At the C-terminal region of the gene are three repeats of 59, 67, and 56 amino acids which are homologous to conserved sequences found in the S-layer-associated regions within the xylanases and cellulases of thermophilic members of the Bacillus-Clostridium cluster. The ManA of T. polysaccharolyticum, besides being an extremely active enzyme, is the only mannanase gene cloned which shows this domain structure. (+info)Cloning and sequencing of beta-mannosidase gene from Aspergillus aculeatus no. F-50. (2/115)
The manB gene, coding for a unique beta-mannosidase (MANB) of Aspergillus aculeatus, was cloned from genomic and cDNA libraries, and sequenced. The gene consists of 2,811 bp encoding a polypeptide of 937 amino acid residues with a molecular mass of 104,214 Da. The A. aculeatus MANB shared amino acid sequence identity with MANB of human (24%), goat (24%), bovine (24%), and Caenorhabditis elegans (22%). When the A. aculeatus MANB was compared with other related enzymes, a Glu residue corresponding to the active site identified by the Escherichia coli beta-galactosidase and the human beta-guclonidase was conserved. This is the first fungal gene that encodes MANB. (+info)Mannan-degrading enzymes from Cellulomonas fimi. (3/115)
The genes man26a and man2A from Cellulomonas fimi encode mannanase 26A (Man26A) and beta-mannosidase 2A (Man2A), respectively. Mature Man26A is a secreted, modular protein of 951 amino acids, comprising a catalytic module in family 26 of glycosyl hydrolases, an S-layer homology module, and two modules of unknown function. Exposure of Man26A produced by Escherichia coli to C. fimi protease generates active fragments of the enzyme that correspond to polypeptides with mannanase activity produced by C. fimi during growth on mannans, indicating that it may be the only mannanase produced by the organism. A significant fraction of the Man26A produced by C. fimi remains cell associated. Man2A is an intracellular enzyme comprising a catalytic module in a subfamily of family 2 of the glycosyl hydrolases that at present contains only mammalian beta-mannosidases. (+info)A family 26 mannanase produced by Clostridium thermocellum as a component of the cellulosome contains a domain which is conserved in mannanases from anaerobic fungi. (4/115)
Cellulosomes prepared by the cellulose affinity digestion method from Clostridium thermocellum culture supernatant hydrolysed carob galactomannan during incubation at 60 degrees C and pH 6.5. A recombinant phage expressing mannanase activity was isolated from a library of C. thermocellum genomic DNA constructed in lambdaZAPII. The cloned fragment of DNA containing a putative mannanase gene (manA) was sequenced, revealing an ORF of 1767 nt, encoding a protein (mannanase A; Man26A) of 589 aa with a molecular mass of 66816 Da. The putative catalytic domain (CD) of Man26A, identified by gene sectioning and sequence comparisons, displayed up to 32% identity with other mannanases belonging to family 26. Immediately downstream of the CD and separated from it by a short proline/threonine linker was a duplicated 24-residue dockerin motif, which is conserved in all C. thermocellum cellulosomal enzymes described thus far and mediates their attachment to the cellulosome-integrating protein (CipA). Man26A consisting of the CD alone (Man26A") was hyperexpressed in Escherichia coli BL21(DE3) and purified. The truncated enzyme hydrolysed soluble and insoluble mannan, displaying a temperature optimum of 65 degrees C and a pH optimum of 6.5, but exhibited no activity against other plant cell wall polysaccharides. Antiserum raised against Man26A" cross-reacted with a polypeptide with a molecular mass of 70000 Da that is part of the C. thermocellum cellulosome. A second variant of Man26A containing the N-terminal segment of 130 residues and the CD (Man26A") bound to ivory-nut mannan and weakly to soluble Carob galactomannan and insoluble cellulose. Man26A" consisting of the CD alone did not bind to these polysaccharides. These results indicate that the N-terminal 130 residues of mature Man26A may constitute a weak mannan-binding domain. Sequence comparisons revealed a lack of identity between this region of Man26A and other polysaccharide-binding domains, but significant identity with a region conserved in the three family 26 mannanases from the anaerobic fungus Piromyces equi. (+info)The engL gene cluster of Clostridium cellulovorans contains a gene for cellulosomal manA. (5/115)
A five-gene cluster around the gene in Clostridium cellulovorans that encodes endoglucanase EngL, which is involved in plant cell wall degradation, has been cloned and sequenced. As a result, a mannanase gene, manA, has been found downstream of engL. The manA gene consists of an open reading frame with 1,275 nucleotides encoding a protein with 425 amino acids and a molecular weight of 47, 156. ManA has a signal peptide followed by a duplicated sequence (DS, or dockerin) at its N terminus and a catalytic domain which belongs to family 5 of the glycosyl hydrolases and shows high sequence similarity with fungal mannanases, such as Agaricus bisporus Cel4 (17.3% identity), Aspergillus aculeatus Man1 (23.7% identity), and Trichoderma reesei Man1 (22.7% identity). Sodium dodecyl sulfate-polyacrylamide gel electrophoresis and N-terminal amino acid sequence analyses of the purified recombinant ManA (rManA) indicated that the N-terminal region of the rManA contained a DS and was truncated in Escherichia coli cells. Furthermore, Western blot analysis indicated that ManA is one of the cellulosomal subunits. ManA production is repressed by cellobiose. (+info)A gene encoding a novel multidomain beta-1,4-mannanase from Caldibacillus cellulovorans and action of the recombinant enzyme on kraft pulp. (6/115)
Genomic walking PCR was used to obtained a 4,567-bp nucleotide sequence from Caldibacillus cellulovorans. Analysis of this sequence revealed that there were three open reading frames, designated ORF1, ORF2, and ORF3. Incomplete ORF1 encoded a putative C-terminal cellulose-binding domain (CBD) homologous to members of CBD family IIIb, while putative ORF3 encoded a protein of unknown function. The putative ManA protein encoded by complete manA ORF2 was an enzyme with a novel multidomain structure and was composed of four domains in the following order: a putative N-terminal domain (D1) of unknown function, an internal CBD (D2), a beta-mannanase catalytic domain (D3), and a C-terminal CBD (D4). All four domains were linked via proline-threonine-rich peptides. Both of the CBDs exhibited sequence similarity to family IIIb CBDs, while the mannanase catalytic domain exhibited homology to the family 5 glycosyl hydrolases. The purified recombinant enzyme ManAd3 expressed from the cloned catalytic domain (D3) exhibited optimum activity at 85 degrees C and pH 6.0 and was extremely thermostable at 70 degrees C. This enzyme exhibited high specificity with the substituted galactomannan locust bean gum, while more substituted galacto- and glucomannans were poorly hydrolyzed. Preliminary studies to determine the effect of the recombinant ManAd3 and a recombinant thermostable beta-xylanase on oxygen-delignified Pinus radiata kraft pulp revealed that there was an increase in the brightness of the bleached pulp. (+info)Digestion of single crystals of mannan I by an endo-mannanase from Trichoderma reesei. (7/115)
The enzymatic degradation of single crystals of mannan I with the catalytic core domain of a beta-mannanase (EC 3.2.1.78 or Man5A) from Trichoderma reesei was investigated by transmission electron microscopy and electron diffraction. The enzyme attack took place at the edge of the crystals and progressed towards their centres. Quite remarkably the crystalline integrity of the crystals was preserved almost to the end of the digestion process. This behaviour is consistent with an endo-mechanism, where the enzyme interacts with the accessible mannan chains located at the crystal periphery and cleaves one mannan molecule at a time. The endo mode of digestion of the crystals was confirmed by an analysis of the soluble degradation products. (+info)Endo-beta-mannanase activity increases in the skin and outer pericarp of tomato fruits during ripening. (8/115)
Activity of endo-beta-mannanase increases during ripening of tomato (Lycopersicon esculentum Mill.) fruit of the cultivar Trust. beta-Mannoside mannohydrolase is also present during ripening, but its pattern of activity is different from that of endo-beta-mannanase. The increase in endo-beta-mannanase activity is greatest in the skin, and less in the outer and inner pericarp regions. This enzyme is probably bound to the walls of the outermost cell layers of the fruit during ripening, and it requires a high-salt buffer for effective extraction. The enzyme protein, as detected immunologically on Western blots, is present during the early stages of ripening, before any enzyme activity is detectable. The mRNA for the enzyme is also present at these stages; endo-beta-mannanase may be produced and sequestered in a mature-sized inactive form during early ripening. Most non-ripening mutants of tomato exhibit reduced softening and lower endo-beta-mannanase activity, but a cause-and-effect relationship between the enzyme and ripening is unlikely because some cultivars which ripen normally do not exhibit any endo-beta-mannanase activity in the fruit. (+info)Mannosidases are a group of enzymes that are involved in the breakdown of complex carbohydrates, specifically mannose-containing oligosaccharides. These enzymes play a crucial role in the metabolism of glycans, which are complex carbohydrates that are found in many biological molecules, including proteins, lipids, and nucleic acids. There are several different types of mannosidases, each with its own specific function and substrate specificity. For example, alpha-mannosidase is involved in the degradation of N-linked glycans, which are found on the surface of many proteins, while beta-mannosidase is involved in the degradation of O-linked glycans, which are found on the surface of certain proteins and lipids. Mannosidases are also involved in the production of certain types of immune cells, and defects in these enzymes can lead to a variety of inherited disorders, such as aspartylglucosaminuria and sialidosis. In addition, mannosidases have been shown to play a role in the development of certain types of cancer, and they are being studied as potential targets for cancer therapy.
Alpha-mannosidase is an enzyme that is involved in the breakdown of complex carbohydrates, specifically mannose-containing oligosaccharides. It is a lysosomal enzyme that is found in many tissues throughout the body, including the liver, spleen, and brain. In the medical field, alpha-mannosidosis is a rare genetic disorder that is caused by a deficiency in alpha-mannosidase activity. This leads to the accumulation of undigested mannose-containing oligosaccharides in various tissues, which can cause a range of symptoms and complications, including intellectual disability, skeletal abnormalities, and hearing loss. Alpha-mannosidosis is typically diagnosed through a combination of clinical examination, laboratory tests, and genetic testing. Treatment for the disorder may involve enzyme replacement therapy, which involves administering alpha-mannosidase to replace the missing enzyme in the body. Other treatments may include supportive care to manage symptoms and complications.
Swainsonine is a toxic amino acid derivative that is produced by certain species of fungi, including the ergot fungus (Claviceps purpurea). It is named after the English botanist William Swainson, who first described the fungus in the early 19th century. In the medical field, swainsonine is known for its ability to inhibit the activity of eukaryotic initiation factor 2B (eIF2B), a key enzyme involved in protein synthesis. This inhibition leads to the accumulation of unprocessed proteins in the cell, which can cause a range of toxic effects, including cell death. Swainsonine has been studied for its potential as an antifungal agent, as well as for its potential use in cancer therapy. It has been shown to selectively kill certain types of cancer cells, including those that are resistant to other forms of chemotherapy. However, swainsonine is also toxic to normal cells, and its use in humans is limited by its potential for side effects.
1-Deoxynojirimycin (DNJ) is a naturally occurring compound found in certain plants, including bitter melon, mulberry, and licorice. It has been studied for its potential health benefits, particularly in the treatment of diabetes. DNJ works by inhibiting the activity of alpha-glucosidase, an enzyme that breaks down carbohydrates in the small intestine. By blocking this enzyme, DNJ can slow down the absorption of carbohydrates into the bloodstream, which can help to lower blood sugar levels in people with diabetes. In addition to its potential benefits for diabetes, DNJ has also been studied for its potential anti-cancer, anti-inflammatory, and anti-obesity effects. However, more research is needed to fully understand the potential health benefits of DNJ and to determine the appropriate dosage and duration of treatment.
Oligosaccharides are short chains of sugar molecules that are composed of three to ten monosaccharide units. They are also known as "oligos" or "short-chain carbohydrates." In the medical field, oligosaccharides have been studied for their potential health benefits, including their ability to improve gut health, boost the immune system, and reduce the risk of chronic diseases such as diabetes and obesity. Some specific types of oligosaccharides that have been studied in the medical field include: 1. Prebiotics: These are oligosaccharides that selectively stimulate the growth of beneficial bacteria in the gut, such as Bifidobacteria and Lactobacilli. 2. Galactooligosaccharides (GOS): These are oligosaccharides that are found naturally in breast milk and have been shown to improve gut health and immune function in infants. 3. Fructooligosaccharides (FOS): These are oligosaccharides that are found in many fruits and vegetables and have been shown to improve gut health and reduce the risk of chronic diseases. Overall, oligosaccharides are an important class of carbohydrates that have potential health benefits and are being studied in the medical field for their potential therapeutic applications.
Mannose is a simple sugar that is a monosaccharide with the chemical formula C6H12O6. It is a component of many complex carbohydrates, including glycans and glycoproteins, which are found in the human body and play important roles in various biological processes. In the medical field, mannose is used as a diagnostic tool to detect certain diseases and conditions. For example, it is used in the diagnosis of certain types of cancer, such as ovarian cancer, by detecting changes in the levels of mannose in the blood or urine. Mannose is also used in the treatment of certain conditions, such as diabetes, by helping to regulate blood sugar levels. It is also used in the development of vaccines and as a component of some dietary supplements. In addition, mannose has been shown to have anti-inflammatory and immune-boosting properties, which may make it useful in the treatment of a variety of conditions, including infections, autoimmune diseases, and allergies.
Polysaccharides are complex carbohydrates that are composed of long chains of monosaccharide units linked together by glycosidic bonds. They are found in many different types of biological materials, including plant cell walls, animal tissues, and microorganisms. In the medical field, polysaccharides are often used as drugs or therapeutic agents, due to their ability to modulate immune responses, promote wound healing, and provide other beneficial effects. Some examples of polysaccharides that are used in medicine include hyaluronic acid, chondroitin sulfate, heparin, and dextran.
Alkaloids are a diverse group of naturally occurring organic compounds that are derived from plants and have a basic or alkaline nature. They are often found in the leaves, seeds, bark, and roots of plants and are known for their bitter taste and pharmacological properties. In the medical field, alkaloids have been used for centuries as traditional remedies for a variety of ailments, including pain relief, fever reduction, and digestive disorders. Many alkaloids have also been isolated and synthesized for use in modern medicine, particularly in the treatment of cancer, infections, and neurological disorders. Some well-known examples of alkaloids include caffeine, nicotine, morphine, codeine, and quinine. These compounds have a wide range of effects on the body, including stimulating the central nervous system, reducing pain and inflammation, and affecting heart rate and blood pressure. However, it is important to note that many alkaloids can also be toxic in high doses and can cause side effects such as nausea, vomiting, and dizziness. Therefore, the use of alkaloids in medicine is typically closely monitored and regulated by healthcare professionals.
Mannosidosis is a rare genetic disorder caused by a deficiency in the enzyme alpha-mannosidase. This enzyme is responsible for breaking down complex carbohydrates called mannose-containing oligosaccharides, which are found in many different types of molecules throughout the body. When alpha-mannosidase is not functioning properly, these molecules accumulate in cells and tissues, leading to a variety of symptoms and health problems. There are several different forms of mannosidosis, which are classified based on the severity and specific symptoms of the disease. Some forms of the disorder are relatively mild and may not cause any noticeable symptoms until later in life, while others are more severe and can cause significant health problems from birth or in early childhood. Symptoms of mannosidosis can vary widely depending on the specific form of the disorder and the severity of the deficiency in alpha-mannosidase. Some common symptoms may include intellectual disability, developmental delays, problems with movement and coordination, vision and hearing loss, and problems with the immune system. In some cases, the disease may also cause more serious health problems, such as heart disease or brain damage. There is currently no cure for mannosidosis, but treatment is available to help manage the symptoms and improve quality of life for people with the disorder. This may include medications to help control symptoms, physical therapy to improve movement and coordination, and other supportive care to address specific health problems.
Imino furanoses are a type of sugar molecule that contains a nitrogen atom in the furanose ring. They are a subclass of furanose sugars, which are a type of sugar that contains a five-membered ring with an oxygen atom at the center. Imino furanoses are important in the field of medicinal chemistry because they can be used as building blocks for the synthesis of a variety of bioactive compounds, including antibiotics, anticancer drugs, and antiviral agents. They are also of interest in the study of carbohydrate-protein interactions, as they can mimic the structure of certain sugars that are involved in these interactions.
Interleukin-1beta (IL-1β) is a type of cytokine, which is a signaling molecule that plays a crucial role in the immune system. It is produced by various types of immune cells, including macrophages, monocytes, and dendritic cells, in response to infection, injury, or inflammation. IL-1β is involved in the regulation of immune responses, including the activation of T cells, B cells, and natural killer cells. It also promotes the production of other cytokines and chemokines, which help to recruit immune cells to the site of infection or injury. In addition to its role in the immune system, IL-1β has been implicated in a variety of inflammatory and autoimmune diseases, including rheumatoid arthritis, inflammatory bowel disease, and multiple sclerosis. It is also involved in the pathogenesis of certain types of cancer, such as breast cancer and ovarian cancer. Overall, IL-1β is a key mediator of inflammation and immune responses, and its dysregulation has been linked to a range of diseases and conditions.
Indolizines are a class of organic compounds that contain a six-membered ring with two nitrogen atoms. They are structurally related to indoles, which have a five-membered ring with one nitrogen atom. Indolizines are of interest in the medical field due to their potential pharmacological activity. Some indolizines have been found to have antitumor, anti-inflammatory, and antipsychotic properties, and are being investigated as potential treatments for a variety of diseases.
In the medical field, a carbohydrate sequence refers to a linear or branched chain of monosaccharide units that are linked together by glycosidic bonds. These sequences are found in various biological molecules such as glycoproteins, glycolipids, and polysaccharides. Carbohydrate sequences play important roles in many biological processes, including cell recognition, cell signaling, and immune responses. They can also be used as diagnostic markers for various diseases, such as cancer and infectious diseases. The structure and composition of carbohydrate sequences can vary widely, depending on the type of monosaccharide units and the arrangement of the glycosidic bonds. Understanding the structure and function of carbohydrate sequences is important for developing new drugs and therapies for various diseases.
Mannosyl-Glycoprotein Endo-beta-N-Acetylglucosaminidase, also known as Endo-beta-N-acetylglucosaminidase 1 (ENGase 1), is an enzyme that plays a crucial role in the degradation and recycling of glycoproteins in the human body. Glycoproteins are proteins that have carbohydrates attached to them, and they are found in many different tissues and organs throughout the body. Over time, glycoproteins can become damaged or degraded, and it is important for the body to be able to break them down and recycle their components. ENGase 1 is responsible for breaking down a specific type of glycoprotein called a high-mannose glycoprotein. These glycoproteins are found on the surface of many different types of cells, and they play important roles in cell signaling and immune function. When ENGase 1 breaks down a high-mannose glycoprotein, it removes a specific type of carbohydrate called a mannose residue. This process is an important step in the degradation and recycling of glycoproteins, and it helps to maintain the proper functioning of the body's cells and tissues. In the medical field, understanding the role of ENGase 1 in glycoprotein degradation and recycling is important for developing new treatments for a variety of diseases and conditions, including cancer, autoimmune disorders, and neurodegenerative diseases.
Glycoproteins are a type of protein that contains one or more carbohydrate chains covalently attached to the protein molecule. These carbohydrate chains are made up of sugars and are often referred to as glycans. Glycoproteins play important roles in many biological processes, including cell signaling, cell adhesion, and immune response. They are found in many different types of cells and tissues throughout the body, and are often used as markers for various diseases and conditions. In the medical field, glycoproteins are often studied as potential targets for the development of new drugs and therapies.
Glucosamine is a naturally occurring amino sugar that is found in the shells of crustaceans and in the cartilage of animals. It is also synthesized in the human body from the amino acid glutamine and the sugar glucose. In the medical field, glucosamine is often used as a dietary supplement to support joint health and reduce the symptoms of osteoarthritis, a degenerative joint disease that affects millions of people worldwide. It is believed to work by stimulating the production of proteoglycans, which are essential components of cartilage that help to cushion and lubricate joints. There is some evidence to suggest that glucosamine may be effective in reducing joint pain and stiffness, improving joint function, and slowing the progression of osteoarthritis. However, more research is needed to confirm these effects and to determine the optimal dosage and duration of treatment. It is important to note that glucosamine supplements are not regulated by the FDA and may contain varying amounts of the active ingredient. Therefore, it is important to choose a high-quality supplement from a reputable manufacturer and to consult with a healthcare provider before starting any new supplement regimen.
Beta 2-Microglobulin (β2M) is a small protein that is produced by most cells in the body, including immune cells such as T cells and B cells. It is a component of the major histocompatibility complex (MHC) class I molecules, which are found on the surface of most cells and are responsible for presenting antigens (foreign substances) to the immune system. In the medical field, β2M is often used as a marker of kidney function. High levels of β2M in the blood can indicate kidney damage or failure, as the kidneys are responsible for removing β2M from the bloodstream. In addition, high levels of β2M have been associated with an increased risk of certain types of cancer, including multiple myeloma and prostate cancer. β2M is also used as a diagnostic tool in the laboratory to help identify and monitor certain diseases and conditions, such as multiple myeloma, autoimmune disorders, and viral infections. It is also used as a component of some types of cancer treatments, such as immunotherapy.
In the medical field, carbohydrate conformation refers to the three-dimensional shape or structure of carbohydrates, which are complex organic molecules made up of carbon, hydrogen, and oxygen atoms. Carbohydrates play important roles in various biological processes, including energy metabolism, cell signaling, and immune responses. The conformation of carbohydrates is determined by the arrangement of their constituent atoms and the types of chemical bonds between them. There are two main types of carbohydrate conformations: alpha and beta. In alpha conformation, the hydroxyl groups on the carbon atoms are arranged in a specific way, while in beta conformation, the hydroxyl groups are arranged differently. The conformation of carbohydrates can also be influenced by factors such as temperature, pH, and the presence of other molecules. Understanding carbohydrate conformation is important for understanding how carbohydrates interact with other molecules in the body, such as proteins and enzymes, and for developing drugs and other therapeutic agents that target carbohydrate-based biomolecules.
Asparagine is an amino acid that is naturally occurring in the human body and is also found in many foods. It is an essential amino acid, which means that it cannot be produced by the body and must be obtained through the diet. In the medical field, asparagine is sometimes used as a medication to treat certain types of cancer, such as ovarian cancer and multiple myeloma. It works by inhibiting the growth of cancer cells and promoting their death. Asparagine is also used to treat certain types of infections, such as herpes simplex virus and varicella-zoster virus. It is usually given intravenously, and the dosage and duration of treatment will depend on the specific condition being treated.
Receptors, Adrenergic, beta (β-adrenergic receptors) are a type of protein found on the surface of cells in the body that bind to and respond to signaling molecules called catecholamines, including adrenaline (epinephrine) and noradrenaline (norepinephrine). These receptors are part of the adrenergic signaling system, which plays a critical role in regulating a wide range of physiological processes, including heart rate, blood pressure, metabolism, and immune function. There are three main types of β-adrenergic receptors: β1, β2, and β3. Each type of receptor is found in different tissues and has different functions. For example, β1 receptors are primarily found in the heart and are responsible for increasing heart rate and contractility. β2 receptors are found in the lungs, blood vessels, and muscles, and are involved in relaxing smooth muscle and increasing blood flow. β3 receptors are found in adipose tissue and are involved in regulating metabolism. Activation of β-adrenergic receptors can have a variety of effects on the body, depending on the specific receptor subtype and the tissue it is found in. For example, activation of β2 receptors in the lungs can cause bronchodilation, which can help to open up airways and improve breathing in people with asthma or other respiratory conditions. Activation of β1 receptors in the heart can increase heart rate and contractility, which can help to improve blood flow and oxygen delivery to the body's tissues. Activation of β3 receptors in adipose tissue can increase metabolism and help to promote weight loss. β-adrenergic receptors are important therapeutic targets for a variety of medical conditions, including heart disease, asthma, and diabetes. Drugs that target these receptors, such as beta blockers and beta agonists, are commonly used to treat these conditions.
Integrin beta3, also known as CD18, is a protein that plays a crucial role in the immune system and blood clotting. It is a subunit of integrin receptors, which are transmembrane proteins that mediate cell-cell and cell-extracellular matrix interactions. In the context of the immune system, integrin beta3 is expressed on the surface of various immune cells, including neutrophils, monocytes, and platelets. It helps these cells to adhere to the endothelium (inner lining of blood vessels) and migrate through the blood vessel walls to sites of inflammation or infection. In the context of blood clotting, integrin beta3 is expressed on the surface of platelets. It plays a critical role in platelet aggregation, which is the process by which platelets stick together to form a plug at the site of a blood vessel injury. Integrin beta3 also helps to activate platelets and promote the formation of a fibrin clot, which stabilizes the platelet plug and prevents further bleeding. Mutations in the gene encoding integrin beta3 can lead to various bleeding disorders, such as Glanzmann thrombasthenia, a rare inherited bleeding disorder characterized by impaired platelet aggregation.
N-Acetylglucosaminyltransferases (NAGTs) are a family of enzymes that play a crucial role in the biosynthesis of glycoproteins and glycolipids. These enzymes catalyze the transfer of N-acetylglucosamine (GlcNAc) from a UDP-GlcNAc donor to a specific acceptor molecule, such as a protein or lipid, to form a glycan chain. There are several types of NAGTs, each with a specific substrate specificity and function. For example, NAGT1 is involved in the synthesis of the O-linked glycans found on mucins, while NAGT2 is involved in the synthesis of the N-linked glycans found on glycoproteins. Disruptions in the function of NAGTs can lead to various diseases, including congenital disorders of glycosylation (CDGs), which are a group of rare genetic disorders characterized by abnormal glycosylation of proteins and lipids. CDGs can affect various organs and systems in the body and can result in a range of symptoms, including developmental delays, intellectual disability, and neurological problems.
Alpha-glucosidases are a group of enzymes that are involved in the breakdown of carbohydrates. They are found in the small intestine and are responsible for breaking down complex carbohydrates, such as starch and glycogen, into simpler sugars that can be absorbed by the body. In the medical field, alpha-glucosidase inhibitors are often used to treat type 2 diabetes. These medications work by slowing down the breakdown of carbohydrates in the small intestine, which helps to lower blood sugar levels. Alpha-glucosidase inhibitors are typically used in combination with other diabetes medications and a healthy diet and exercise regimen.
Brefeldin A (BFA) is a naturally occurring macrolide compound that was first isolated from the fungus Brefeldia nivea. It is a potent inhibitor of the Golgi apparatus, a organelle in eukaryotic cells responsible for sorting, packaging, and transporting proteins and lipids to their final destinations within the cell or for secretion outside the cell. In the medical field, BFA is used as a tool to study the function and dynamics of the Golgi apparatus and other intracellular organelles. It is often used in cell biology research to visualize and analyze the transport of proteins and lipids through the Golgi apparatus and to study the role of the Golgi apparatus in various cellular processes, such as cell growth, differentiation, and signaling. BFA is also being investigated as a potential therapeutic agent for various diseases, including cancer, neurodegenerative disorders, and infectious diseases. However, more research is needed to fully understand its potential therapeutic effects and to develop safe and effective treatments based on BFA.
Hexosaminidases are a group of enzymes that are involved in the breakdown of complex carbohydrates called glycosaminoglycans. These enzymes are found in many tissues throughout the body, including the brain, liver, and kidneys. There are two main types of hexosaminidases: alpha-hexosaminidase A and alpha-hexosaminidase B. Both of these enzymes are composed of two subunits, alpha and beta, that are encoded by different genes. Alpha-hexosaminidase A is responsible for breaking down a type of glycosaminoglycan called GM2 ganglioside, which is found in the brain and other tissues. Mutations in the gene that encodes the alpha subunit of this enzyme can lead to a group of inherited disorders known as GM2 gangliosidoses, which are characterized by progressive neurological problems and can be life-threatening. Alpha-hexosaminidase B is responsible for breaking down a different type of glycosaminoglycan called GM3 ganglioside, which is also found in the brain and other tissues. Mutations in the gene that encodes the beta subunit of this enzyme can lead to another group of inherited disorders known as GM3 gangliosidoses, which can also cause neurological problems. Hexosaminidases are important for maintaining the normal structure and function of cells and tissues, and defects in these enzymes can lead to a range of health problems.
Glycoside hydrolases are a group of enzymes that catalyze the hydrolysis of glycosidic bonds in carbohydrates. These enzymes are involved in a wide range of biological processes, including digestion, metabolism, and signaling. In the medical field, glycoside hydrolases are often used as diagnostic tools to study carbohydrate metabolism and to develop new treatments for diseases related to carbohydrate metabolism, such as diabetes and obesity. They are also used in the production of biofuels and other industrial products.
In the medical field, a cell line refers to a group of cells that have been derived from a single parent cell and have the ability to divide and grow indefinitely in culture. These cells are typically grown in a laboratory setting and are used for research purposes, such as studying the effects of drugs or investigating the underlying mechanisms of diseases. Cell lines are often derived from cancerous cells, as these cells tend to divide and grow more rapidly than normal cells. However, they can also be derived from normal cells, such as fibroblasts or epithelial cells. Cell lines are characterized by their unique genetic makeup, which can be used to identify them and compare them to other cell lines. Because cell lines can be grown in large quantities and are relatively easy to maintain, they are a valuable tool in medical research. They allow researchers to study the effects of drugs and other treatments on specific cell types, and to investigate the underlying mechanisms of diseases at the cellular level.
Acetylglucosaminidase is an enzyme that is involved in the breakdown of a complex sugar molecule called heparan sulfate. It is primarily found in lysosomes, which are organelles within cells that contain enzymes for breaking down and recycling cellular waste. Mutations in the gene that codes for acetylglucosaminidase can lead to a rare genetic disorder called Sanfilippo syndrome type B, also known as mucopolysaccharidosis type III. This disorder is characterized by the accumulation of heparan sulfate in the body, which can lead to a range of symptoms including intellectual disability, developmental delays, and progressive neurological problems. In the medical field, acetylglucosaminidase is also used as a diagnostic tool for detecting Sanfilippo syndrome type B. Enzyme replacement therapy, which involves replacing the deficient enzyme with a functional version, is currently being studied as a potential treatment for this disorder.
Monensin is a polyether antibiotic that is used in veterinary medicine to treat various infections caused by gram-positive and gram-negative bacteria, as well as protozoa. It works by inhibiting the growth and reproduction of these microorganisms by disrupting their cell membranes. In the medical field, monensin is primarily used to treat cattle and other livestock, particularly for respiratory and digestive infections caused by bacteria such as Mycoplasma bovis, Mannheimia haemolytica, and Escherichia coli. It is also used to treat protozoal infections such as coccidiosis in poultry and sheep. Monensin is available in various forms, including oral drenches, injectable solutions, and feed additives. It is generally well-tolerated by animals, although some may experience mild side effects such as diarrhea, decreased appetite, and weight loss. As with any medication, it is important to follow the recommended dosage and administration guidelines provided by a veterinarian.
p-Chloromercuribenzoic acid (p-CMB) is a medication that was once used to treat certain types of skin conditions, such as psoriasis and eczema. It works by slowing down the growth of skin cells and reducing inflammation. However, p-CMB has been found to be toxic to the liver and kidneys, and its use has been largely discontinued. It is not currently recommended for use in the medical field.
Glucosidases are a group of enzymes that catalyze the hydrolysis of glycosidic bonds in carbohydrates. In the medical field, glucosidases are important in the metabolism of carbohydrates, particularly in the breakdown of complex carbohydrates into simpler sugars that can be absorbed and used by the body. There are several types of glucosidases, including alpha-glucosidases, beta-glucosidases, and glucoamylases. Alpha-glucosidases are found in the small intestine and are responsible for breaking down complex carbohydrates, such as starches, into simpler sugars like glucose. Beta-glucosidases are found in the liver and are involved in the metabolism of certain drugs and toxins. Glucoamylases are found in the saliva and are responsible for breaking down starches into maltose, which can then be further broken down by enzymes in the small intestine. In the medical field, glucosidases are used in the treatment of certain conditions, such as diabetes, where the body is unable to produce enough insulin to properly regulate blood sugar levels. Alpha-glucosidase inhibitors are a type of medication that work by slowing down the breakdown of carbohydrates in the small intestine, which can help to lower blood sugar levels in people with type 2 diabetes. Beta-glucosidases are also used in the treatment of certain liver diseases, such as Wilson's disease, where the liver is unable to properly metabolize certain toxins.
In the medical field, a base sequence refers to the specific order of nucleotides (adenine, thymine, cytosine, and guanine) that make up the genetic material (DNA or RNA) of an organism. The base sequence determines the genetic information encoded within the DNA molecule and ultimately determines the traits and characteristics of an individual. The base sequence can be analyzed using various techniques, such as DNA sequencing, to identify genetic variations or mutations that may be associated with certain diseases or conditions.
Transforming Growth Factor beta (TGF-β) is a family of cytokines that play a crucial role in regulating cell growth, differentiation, and migration. TGF-βs are secreted by a variety of cells, including immune cells, fibroblasts, and epithelial cells, and act on neighboring cells to modulate their behavior. TGF-βs have both pro-inflammatory and anti-inflammatory effects, depending on the context in which they are released. They can promote the differentiation of immune cells into effector cells that help to fight infections, but they can also suppress the immune response to prevent excessive inflammation. In addition to their role in immune regulation, TGF-βs are also involved in tissue repair and fibrosis. They can stimulate the production of extracellular matrix proteins, such as collagen, which are essential for tissue repair. However, excessive production of TGF-βs can lead to fibrosis, a condition in which excessive amounts of connective tissue accumulate in the body, leading to organ dysfunction. Overall, TGF-βs are important signaling molecules that play a critical role in regulating a wide range of cellular processes in the body.
In the medical field, an amino acid sequence refers to the linear order of amino acids in a protein molecule. Proteins are made up of chains of amino acids, and the specific sequence of these amino acids determines the protein's structure and function. The amino acid sequence is determined by the genetic code, which is a set of rules that specifies how the sequence of nucleotides in DNA is translated into the sequence of amino acids in a protein. Each amino acid is represented by a three-letter code, and the sequence of these codes is the amino acid sequence of the protein. The amino acid sequence is important because it determines the protein's three-dimensional structure, which in turn determines its function. Small changes in the amino acid sequence can have significant effects on the protein's structure and function, and this can lead to diseases or disorders. For example, mutations in the amino acid sequence of a protein involved in blood clotting can lead to bleeding disorders.
Acetylglucosamine is a type of sugar molecule that is found in the cell walls of bacteria and fungi. It is also a component of the glycoproteins and glycolipids that are found on the surface of cells in the human body. In the medical field, acetylglucosamine is sometimes used as a dietary supplement, and it is claimed to have a number of health benefits, including boosting the immune system, improving digestion, and reducing inflammation. However, there is limited scientific evidence to support these claims, and more research is needed to fully understand the potential benefits and risks of taking acetylglucosamine supplements.
Alpha 1-Antitrypsin (AAT) is a protein produced by the liver that plays a crucial role in protecting the lungs from damage caused by enzymes called proteases. Proteases are enzymes that break down proteins, and in the lungs, they can cause inflammation and damage to the airways and lung tissue. AAT acts as a protease inhibitor, binding to and neutralizing proteases that would otherwise cause damage to the lungs. It is particularly important in protecting the lungs from damage caused by cigarette smoke, air pollution, and other irritants. Deficiency in AAT can lead to a condition called alpha 1-antitrypsin deficiency, which is a genetic disorder that can cause lung disease, liver disease, and other health problems. People with alpha 1-antitrypsin deficiency produce low levels of AAT or produce AAT that is not functional, leading to an increased risk of lung damage and other health problems.
Cloning, molecular, in the medical field refers to the process of creating identical copies of a specific DNA sequence or gene. This is achieved through a technique called polymerase chain reaction (PCR), which amplifies a specific DNA sequence to produce multiple copies of it. Molecular cloning is commonly used in medical research to study the function of specific genes, to create genetically modified organisms for therapeutic purposes, and to develop new drugs and treatments. It is also used in forensic science to identify individuals based on their DNA. In the context of human cloning, molecular cloning is used to create identical copies of a specific gene or DNA sequence from one individual and insert it into the genome of another individual. This technique has been used to create transgenic animals, but human cloning is currently illegal in many countries due to ethical concerns.
Cricetinae is a subfamily of rodents that includes hamsters, voles, and lemmings. These animals are typically small to medium-sized and have a broad, flat head and a short, thick body. They are found in a variety of habitats around the world, including grasslands, forests, and deserts. In the medical field, Cricetinae are often used as laboratory animals for research purposes, as they are easy to care for and breed, and have a relatively short lifespan. They are also used in studies of genetics, physiology, and behavior.
Recombinant proteins are proteins that are produced by genetically engineering bacteria, yeast, or other organisms to express a specific gene. These proteins are typically used in medical research and drug development because they can be produced in large quantities and are often more pure and consistent than proteins that are extracted from natural sources. Recombinant proteins can be used for a variety of purposes in medicine, including as diagnostic tools, therapeutic agents, and research tools. For example, recombinant versions of human proteins such as insulin, growth hormones, and clotting factors are used to treat a variety of medical conditions. Recombinant proteins can also be used to study the function of specific genes and proteins, which can help researchers understand the underlying causes of diseases and develop new treatments.
Coat Protein Complex I, also known as NADH:ubiquinone oxidoreductase, is a large enzyme complex that plays a crucial role in the electron transport chain of mitochondria. It is responsible for transferring electrons from NADH to ubiquinone, which is a coenzyme involved in the production of ATP, the energy currency of the cell. The complex is composed of 45 subunits, including 14 core subunits and 31 accessory subunits. It is located in the inner mitochondrial membrane and is responsible for the reduction of ubiquinone to ubiquinol, which is then used in the electron transport chain to generate ATP. Deficiencies in the function of Complex I have been linked to a number of diseases, including Leigh syndrome, a rare genetic disorder that affects the nervous system.
In the medical field, "Cells, Cultured" refers to cells that have been grown and maintained in a controlled environment outside of their natural biological context, typically in a laboratory setting. This process is known as cell culture and involves the isolation of cells from a tissue or organism, followed by their growth and proliferation in a nutrient-rich medium. Cultured cells can be derived from a variety of sources, including human or animal tissues, and can be used for a wide range of applications in medicine and research. For example, cultured cells can be used to study the behavior and function of specific cell types, to develop new drugs and therapies, and to test the safety and efficacy of medical products. Cultured cells can be grown in various types of containers, such as flasks or Petri dishes, and can be maintained at different temperatures and humidity levels to optimize their growth and survival. The medium used to culture cells typically contains a combination of nutrients, growth factors, and other substances that support cell growth and proliferation. Overall, the use of cultured cells has revolutionized medical research and has led to many important discoveries and advancements in the field of medicine.
Chromatography is a technique used in the medical field to separate and analyze complex mixtures of substances. It is based on the principle of differential partitioning of the components of a mixture between two phases, one of which is stationary and the other is mobile. The stationary phase is typically a solid or a liquid that is immobilized on a solid support, while the mobile phase is a liquid or a gas that flows through the stationary phase. In medical applications, chromatography is used to separate and analyze a wide range of substances, including drugs, metabolites, proteins, and nucleic acids. It is commonly used in drug discovery and development, quality control of pharmaceuticals, and clinical diagnosis and monitoring of diseases. There are several types of chromatography techniques used in the medical field, including liquid chromatography (LC), gas chromatography (GC), and high-performance liquid chromatography (HPLC). Each technique has its own advantages and disadvantages, and the choice of technique depends on the specific application and the properties of the substances being analyzed.
Galactosyltransferases are a group of enzymes that transfer galactose molecules from a donor molecule to an acceptor molecule. These enzymes play important roles in the synthesis of various glycoproteins and glycolipids, which are molecules that contain carbohydrates attached to proteins or lipids. In the medical field, galactosyltransferases are of particular interest because they are involved in the production of certain types of cancer cells. For example, the enzyme beta1,4-galactosyltransferase 7 (B4GALT7) has been shown to be overexpressed in many types of cancer, including breast, ovarian, and lung cancer. This overexpression is thought to contribute to the growth and spread of cancer cells. Galactosyltransferases are also important for the proper functioning of the immune system. For example, the enzyme alpha1,3-galactosyltransferase (alpha1,3-GalT) is involved in the synthesis of a molecule called the alpha-gal epitope, which is found on the surface of many types of cells in the body. The alpha-gal epitope is recognized by the immune system as foreign, and it can trigger an immune response that leads to the destruction of cells that display it. This immune response is thought to play a role in the rejection of transplanted organs and the development of certain types of autoimmune diseases.
Integrin alpha5beta1, also known as vitronectin receptor (VNR) or fibronectin receptor (FnR), is a transmembrane protein complex that plays a crucial role in cell adhesion, migration, and signaling. It is composed of two subunits, alpha5 and beta1, which are encoded by separate genes and assemble into a heterodimeric complex. Integrin alpha5beta1 is expressed on the surface of many different cell types, including fibroblasts, endothelial cells, and immune cells. It binds to extracellular matrix (ECM) proteins such as fibronectin, vitronectin, and laminin, which are essential for tissue development, wound healing, and angiogenesis. In the medical field, integrin alpha5beta1 is of great interest due to its role in various diseases and conditions. For example, it has been implicated in cancer progression, as its overexpression is often associated with increased tumor invasion and metastasis. It is also involved in the development of fibrotic diseases such as idiopathic pulmonary fibrosis and liver cirrhosis. Targeting integrin alpha5beta1 has been proposed as a potential therapeutic strategy for these diseases. Several drugs that block the interaction between integrin alpha5beta1 and its ECM ligands are currently in preclinical or clinical development for the treatment of cancer and fibrotic diseases.
Integrin beta4 is a protein that plays a crucial role in the formation and maintenance of blood vessels, skin, and other tissues in the human body. It is a component of integrin receptors, which are cell surface proteins that mediate cell-cell and cell-matrix interactions. In the medical field, integrin beta4 is often studied in the context of cancer. It has been found to be overexpressed in many types of cancer, including breast, ovarian, and lung cancer, and is thought to contribute to tumor growth and metastasis. In addition, integrin beta4 has been shown to play a role in the development of certain skin conditions, such as psoriasis and atopic dermatitis. Targeting integrin beta4 has been proposed as a potential therapeutic strategy for cancer and other diseases. For example, drugs that block the interaction between integrin beta4 and its ligands have shown promise in preclinical studies as potential cancer treatments.
In the medical field, "DNA, Complementary" refers to the property of DNA molecules to pair up with each other in a specific way. Each strand of DNA has a unique sequence of nucleotides (adenine, thymine, guanine, and cytosine), and the nucleotides on one strand can only pair up with specific nucleotides on the other strand in a complementary manner. For example, adenine (A) always pairs up with thymine (T), and guanine (G) always pairs up with cytosine (C). This complementary pairing is essential for DNA replication and transcription, as it ensures that the genetic information encoded in one strand of DNA can be accurately copied onto a new strand. The complementary nature of DNA also plays a crucial role in genetic engineering and biotechnology, as scientists can use complementary DNA strands to create specific genetic sequences or modify existing ones.
Integrin alpha6beta4 is a protein complex that plays a crucial role in the development and maintenance of various tissues in the human body. It is a transmembrane protein that is expressed on the surface of cells and is involved in cell adhesion, migration, and signaling. In the medical field, integrin alpha6beta4 is of particular interest because it is involved in the development and progression of several diseases, including cancer. In particular, integrin alpha6beta4 is overexpressed in many types of cancer, including breast, ovarian, and pancreatic cancer, and is thought to play a role in the growth and spread of these tumors. Integrin alpha6beta4 is also involved in the development of other diseases, including inflammatory bowel disease, psoriasis, and alopecia areata. In these conditions, the expression of integrin alpha6beta4 is altered, leading to abnormal cell behavior and tissue damage. Overall, integrin alpha6beta4 is a key protein in the regulation of cell behavior and tissue function, and its role in various diseases is an active area of research in the medical field.
Integrin beta chains are one of the subunits that make up integrins, which are transmembrane proteins found on the surface of most cells. Integrins are responsible for mediating cell-cell and cell-extracellular matrix interactions, and play a crucial role in a variety of physiological processes, including cell adhesion, migration, and signaling. There are 18 different integrin beta chains that have been identified, each of which pairs with a different alpha chain to form a specific integrin heterodimer. These integrin heterodimers have distinct binding specificities for various extracellular matrix proteins, such as fibronectin, laminin, and vitronectin. Integrin beta chains are encoded by different genes, and mutations in these genes can lead to various diseases and disorders, such as leukocyte adhesion deficiency, platelet function defects, and cancer. Therefore, understanding the structure and function of integrin beta chains is important for developing new therapeutic strategies for these diseases.
Mannans are a type of polysaccharide, which are complex carbohydrates made up of long chains of sugar molecules. In the medical field, mannans are often used as a dietary supplement or as an ingredient in certain medications. Mannans are found in many foods, including fruits, vegetables, and grains, but they are also produced by certain types of fungi and bacteria. Some studies have suggested that mannans may have immune-boosting properties and may be beneficial for people with certain health conditions, such as allergies, autoimmune disorders, and cancer. In the medical field, mannans are sometimes used as an ingredient in dietary supplements or as an active ingredient in certain medications. For example, some dietary supplements contain mannan-chitosan complexes, which are believed to help reduce cholesterol levels and improve digestion. Mannans are also used in some medications to treat certain types of infections, such as fungal infections of the skin and nails. It's important to note that while mannans may have potential health benefits, more research is needed to fully understand their effects on the body. As with any dietary supplement or medication, it's important to talk to a healthcare provider before starting to take mannans or any other supplement or medication.
Beta 2-Glycoprotein I (β2-GPI) is a plasma protein that plays a crucial role in the coagulation cascade and the regulation of blood clotting. It is a member of the phospholipid-binding protein family and is composed of 544 amino acids. β2-GPI is a cofactor for the activation of factor X and the inactivation of factor Va and VIIIa, which are essential components of the coagulation cascade. It also binds to phospholipids, which are important components of cell membranes and are involved in the formation of blood clots. In addition to its role in coagulation, β2-GPI has been implicated in several medical conditions, including antiphospholipid syndrome (APS), a disorder characterized by the formation of blood clots and pregnancy complications. In APS, antibodies against β2-GPI can bind to phospholipids and activate the coagulation cascade, leading to the formation of blood clots. β2-GPI is also a target of autoantibodies in systemic lupus erythematosus (SLE), an autoimmune disorder that can affect multiple organs and systems in the body. In SLE, autoantibodies against β2-GPI can cause inflammation and damage to various tissues, including the kidneys, joints, and brain. Overall, β2-GPI is a critical protein involved in the regulation of blood clotting and has been implicated in several medical conditions, including APS and SLE.
Membrane proteins are proteins that are embedded within the lipid bilayer of a cell membrane. They play a crucial role in regulating the movement of substances across the membrane, as well as in cell signaling and communication. There are several types of membrane proteins, including integral membrane proteins, which span the entire membrane, and peripheral membrane proteins, which are only in contact with one or both sides of the membrane. Membrane proteins can be classified based on their function, such as transporters, receptors, channels, and enzymes. They are important for many physiological processes, including nutrient uptake, waste elimination, and cell growth and division.
Integrin alpha4beta1, also known as very late antigen-4 (VLA-4), is a cell surface protein that plays a crucial role in the adhesion and migration of immune cells, particularly leukocytes, to the endothelium of blood vessels. It is composed of two subunits, alpha4 and beta1, which are encoded by different genes. In the context of the immune system, integrin alpha4beta1 is involved in the homing of immune cells to specific tissues, such as the lymph nodes, spleen, and bone marrow. It also plays a role in the activation and differentiation of immune cells, as well as in the regulation of inflammation and immune responses. In addition to its role in the immune system, integrin alpha4beta1 has been implicated in various diseases, including cancer, autoimmune disorders, and infectious diseases. For example, it has been shown to be involved in the metastasis of certain types of cancer cells, as well as in the pathogenesis of multiple sclerosis and rheumatoid arthritis. Overall, integrin alpha4beta1 is a key regulator of immune cell function and has important implications for the development and treatment of various diseases.
Cell compartmentation refers to the physical separation of different cellular components and organelles within a cell. This separation allows for the efficient functioning of various cellular processes and helps to maintain cellular homeostasis. Each organelle has a specific function and is compartmentalized to allow for the proper execution of that function. For example, the mitochondria are responsible for energy production and are located in the cytoplasm, while the nucleus contains the genetic material and is located in the center of the cell. Cell compartmentation also plays a role in the regulation of cellular processes. For example, the endoplasmic reticulum (ER) is responsible for protein synthesis and folding, and its compartmentalization allows for the proper processing and transport of proteins within the cell. Disruptions in cell compartmentation can lead to various diseases and disorders, including neurodegenerative diseases, metabolic disorders, and cancer.
Tunicamycin is an antibiotic medication that is used to treat certain types of infections caused by bacteria. It is a type of antibiotic called a macrolide, which works by stopping the growth of bacteria. Tunicamycin is typically used to treat infections of the respiratory tract, such as pneumonia and bronchitis, as well as infections of the skin and soft tissues. It is usually given by injection into a vein, although it can also be given by mouth in some cases. Tunicamycin can cause side effects, including nausea, vomiting, and diarrhea, and it may interact with other medications. It is important to follow the instructions of your healthcare provider when taking tunicamycin.
Integrin alpha2beta1 is a type of cell surface protein that plays a crucial role in cell adhesion and migration. It is a heterodimeric protein composed of two subunits, alpha2 and beta1, which are encoded by separate genes. In the medical field, integrin alpha2beta1 is involved in various physiological processes, including wound healing, tissue repair, and immune cell function. It is also expressed on the surface of many different types of cells, including fibroblasts, endothelial cells, and immune cells. Abnormalities in integrin alpha2beta1 expression or function have been linked to a variety of diseases, including cancer, autoimmune disorders, and cardiovascular disease. For example, integrin alpha2beta1 has been shown to play a role in the development and progression of breast cancer, and its expression has been associated with poor prognosis in patients with the disease. Additionally, integrin alpha2beta1 has been implicated in the pathogenesis of autoimmune disorders such as rheumatoid arthritis and multiple sclerosis.
Receptors, Adrenergic, beta-2 (β2-adrenergic receptors) are a type of protein found on the surface of cells in the body that bind to and respond to the hormone adrenaline (also known as epinephrine). These receptors are part of the adrenergic receptor family, which also includes alpha-adrenergic receptors (α-adrenergic receptors). β2-adrenergic receptors are found in many different tissues throughout the body, including the lungs, heart, and blood vessels. When adrenaline binds to these receptors, it triggers a series of chemical reactions within the cell that can have a variety of effects, depending on the tissue type and the specific receptor subtype. In the lungs, activation of β2-adrenergic receptors can cause bronchodilation, which is the widening of the airways and can help to improve breathing. In the heart, activation of these receptors can increase heart rate and contractility, which can help to improve blood flow. In the blood vessels, activation of β2-adrenergic receptors can cause vasodilation, which is the widening of blood vessels and can help to lower blood pressure. β2-adrenergic receptors are also important in the body's response to stress. When the body is under stress, the adrenal gland releases adrenaline, which binds to these receptors and triggers the body's "fight or flight" response. This response can help the body to prepare for physical activity and to respond to potential threats. In the medical field, β2-adrenergic receptors are the target of many medications, including bronchodilators used to treat asthma and other respiratory conditions, and beta blockers used to treat high blood pressure and other cardiovascular conditions.
CHO cells are a type of Chinese hamster ovary (CHO) cell line that is commonly used in the biotechnology industry for the production of recombinant proteins. These cells are derived from the ovaries of Chinese hamsters and have been genetically modified to produce large amounts of a specific protein or protein complex. CHO cells are often used as a host cell for the production of therapeutic proteins, such as monoclonal antibodies, growth factors, and enzymes. They are also used in research to study the structure and function of proteins, as well as to test the safety and efficacy of new drugs. One of the advantages of using CHO cells is that they are relatively easy to culture and can be grown in large quantities. They are also able to produce high levels of recombinant proteins, making them a popular choice for the production of biopharmaceuticals. However, like all cell lines, CHO cells can also have limitations and may not be suitable for all types of protein production.
Mannosyltransferases are a group of enzymes that transfer mannose sugar molecules from a donor molecule to a receptor molecule. These enzymes play a crucial role in the biosynthesis of complex carbohydrates, such as glycoproteins and glycolipids, which are important components of cell membranes and play a variety of functions in the body. In the medical field, mannosyltransferases are of particular interest because they are involved in the formation of glycans, which are often altered in diseases such as cancer, diabetes, and infectious diseases. For example, changes in the expression or activity of specific mannosyltransferases have been linked to the development of certain types of cancer, and targeting these enzymes has been proposed as a potential therapeutic strategy. Mannosyltransferases are also important in the immune system, where they play a role in the recognition and clearance of pathogens by immune cells. In addition, they are involved in the regulation of cell growth and differentiation, and in the maintenance of tissue homeostasis. Overall, mannosyltransferases are a diverse group of enzymes that play important roles in many biological processes, and their study is of great interest in the medical field.
Cyclopentanes are a type of organic compound that contain a five-membered ring of carbon atoms with one hydrogen atom attached to each carbon atom. They are commonly used as solvents, intermediates in chemical reactions, and as starting materials for the synthesis of other compounds. In the medical field, cyclopentanes are not typically used as drugs or therapeutic agents. However, some cyclopentane derivatives have been studied for their potential use in the treatment of various diseases, including cancer and viral infections.
Integrins are a family of transmembrane proteins that play a crucial role in cell adhesion and signaling. They are composed of two subunits, alpha and beta, which form a heterodimer that spans the cell membrane. Integrins bind to various extracellular matrix proteins, such as fibronectin, laminin, and collagen, and transmit signals across the cell membrane to the cytoplasm. This process is essential for cell migration, tissue development, and immune function. In the medical field, integrins are important targets for the development of drugs to treat various diseases, including cancer, autoimmune disorders, and cardiovascular diseases.
Octoxynol is a chemical compound that is commonly used in personal care products, such as shampoos, conditioners, and lotions. It is a type of nonionic surfactant, which means that it is a substance that helps to reduce the surface tension of water and other liquids, allowing them to mix more easily. In the medical field, octoxynol is sometimes used as an ingredient in antiseptic solutions and other types of disinfectants. It is believed to have antimicrobial properties, which means that it can help to kill or inhibit the growth of bacteria, viruses, and other microorganisms. However, it is important to note that octoxynol can also be irritating to the skin and eyes, and it may cause allergic reactions in some people. As a result, it is generally used in low concentrations and is not recommended for use on sensitive or damaged skin.
Interleukin-1 (IL-1) is a type of cytokine, which is a signaling molecule that plays a crucial role in the immune system. IL-1 is produced by various types of immune cells, including macrophages, monocytes, and dendritic cells, in response to infection, injury, or inflammation. IL-1 has multiple functions in the immune system, including promoting the activation and proliferation of immune cells, enhancing the production of other cytokines, and regulating the inflammatory response. It can also stimulate the production of fever, which helps to fight off infections. In the medical field, IL-1 is often studied in the context of various diseases, including autoimmune disorders, inflammatory bowel disease, and rheumatoid arthritis. It is also being investigated as a potential target for the development of new treatments for these conditions.
CD29 is a protein that is expressed on the surface of many different types of cells in the body, including immune cells, endothelial cells, and fibroblasts. It is also known as the very late activation antigen-2 (VLA-2) or the integrin alpha 4 beta 1. CD29 plays a role in cell adhesion and migration, and it is involved in a variety of cellular processes, including cell proliferation, differentiation, and survival. It is also a receptor for several different ligands, including fibronectin, laminin, and VCAM-1 (vascular cell adhesion molecule-1). In the context of the immune system, CD29 is important for the function of T cells and B cells. It is expressed on the surface of T cells and is involved in the activation and proliferation of these cells in response to antigen stimulation. It is also expressed on the surface of B cells and is involved in the activation and differentiation of these cells into antibody-producing plasma cells. CD29 is also a target for therapeutic antibodies in the treatment of certain diseases, including cancer and autoimmune disorders. These antibodies can block the interaction between CD29 and its ligands, thereby inhibiting cell adhesion and migration and potentially slowing the progression of the disease.
Integrin alpha6beta1 is a protein complex that plays a crucial role in cell adhesion and migration. It is composed of two subunits, alpha6 and beta1, which are transmembrane proteins found on the surface of many different types of cells, including epithelial cells, endothelial cells, and fibroblasts. In the medical field, integrin alpha6beta1 is of particular interest because it is involved in a number of important biological processes, including wound healing, tissue repair, and cancer progression. For example, integrin alpha6beta1 is thought to play a key role in the formation of blood vessels, and it has been implicated in the development of certain types of cancer, such as breast cancer and ovarian cancer. In addition, integrin alpha6beta1 has been shown to play a role in the immune response, and it is involved in the adhesion of immune cells to the endothelium of blood vessels. It is also thought to play a role in the development of fibrosis, a condition in which scar tissue forms in response to injury or disease. Overall, integrin alpha6beta1 is a complex protein that plays a critical role in many different biological processes, and it is an important target for research in the medical field.
Cell fractionation is a technique used in the medical field to isolate specific cellular components or organelles from a mixture of cells. This is achieved by fractionating the cells based on their size, density, or other physical properties, such as their ability to float or sediment in a solution. There are several different methods of cell fractionation, including differential centrifugation, density gradient centrifugation, and free-flow electrophoresis. Each method is designed to isolate specific cellular components or organelles, such as mitochondria, lysosomes, or nuclei. Cell fractionation is commonly used in research to study the function and interactions of different cellular components, as well as to isolate specific proteins or other molecules for further analysis. It is also used in clinical settings to diagnose and treat various diseases, such as cancer, by analyzing the composition and function of cells in tissues and fluids.
In the medical field, "Cations, Divalent" refers to positively charged ions that have a charge of +2. These ions are typically metal ions, such as calcium, magnesium, and zinc, and are important for various physiological processes in the body. Divalent cations play a crucial role in maintaining the balance of electrolytes in the body, which is essential for proper nerve and muscle function. They are also involved in bone health, as calcium and magnesium are important components of bone tissue. Imbalances in the levels of divalent cations can lead to a variety of health problems, including muscle cramps, seizures, and heart arrhythmias. In some cases, medications may be prescribed to help regulate the levels of these ions in the body.
The proteasome endopeptidase complex is a large protein complex found in the cells of all eukaryotic organisms. It is responsible for breaking down and recycling damaged or unnecessary proteins within the cell. The proteasome is composed of two main subunits: the 20S core particle, which contains the proteolytic active sites, and the 19S regulatory particle, which recognizes and unfolds target proteins for degradation. The proteasome plays a critical role in maintaining cellular homeostasis and is involved in a wide range of cellular processes, including cell cycle regulation, immune response, and protein quality control. Dysregulation of the proteasome has been implicated in a number of diseases, including cancer, neurodegenerative disorders, and autoimmune diseases.
Membrane glycoproteins are proteins that are attached to the cell membrane through a glycosyl group, which is a complex carbohydrate. These proteins play important roles in cell signaling, cell adhesion, and cell recognition. They are involved in a wide range of biological processes, including immune response, cell growth and differentiation, and nerve transmission. Membrane glycoproteins can be classified into two main types: transmembrane glycoproteins, which span the entire cell membrane, and peripheral glycoproteins, which are located on one side of the membrane.
Receptors, Adrenergic, beta-1 (β1-adrenergic receptors) are a type of protein found on the surface of cells in the body that bind to and respond to the hormone adrenaline (also known as epinephrine). These receptors are primarily located in the heart, lungs, and blood vessels, and play a key role in the body's "fight or flight" response to stress or danger. When adrenaline binds to β1-adrenergic receptors, it triggers a series of chemical reactions within the cell that can have a number of effects on the body. For example, it can cause the heart to beat faster and harder, which can increase blood flow to the muscles and prepare the body for physical activity. It can also cause blood vessels to constrict, which can raise blood pressure and help to direct blood flow to the most important organs. β1-adrenergic receptors are also involved in a number of other physiological processes, including the regulation of glucose metabolism and the control of inflammation. They are an important target for medications used to treat a variety of conditions, including heart disease, high blood pressure, and asthma.
In the medical field, binding sites refer to specific locations on the surface of a protein molecule where a ligand (a molecule that binds to the protein) can attach. These binding sites are often formed by a specific arrangement of amino acids within the protein, and they are critical for the protein's function. Binding sites can be found on a wide range of proteins, including enzymes, receptors, and transporters. When a ligand binds to a protein's binding site, it can cause a conformational change in the protein, which can alter its activity or function. For example, a hormone may bind to a receptor protein, triggering a signaling cascade that leads to a specific cellular response. Understanding the structure and function of binding sites is important in many areas of medicine, including drug discovery and development, as well as the study of diseases caused by mutations in proteins that affect their binding sites. By targeting specific binding sites on proteins, researchers can develop drugs that modulate protein activity and potentially treat a wide range of diseases.
Cytosol is the fluid inside the cytoplasm of a cell, which is the gel-like substance that fills the cell membrane. It is also known as the cytoplasmic matrix or cytosolic matrix. The cytosol is a complex mixture of water, ions, organic molecules, and various enzymes and other proteins that play important roles in cellular metabolism, signaling, and transport. It is the site of many cellular processes, including protein synthesis, energy production, and waste removal. The cytosol is also the site of many cellular organelles, such as the mitochondria, ribosomes, and endoplasmic reticulum, which are responsible for carrying out specific cellular functions.
Integrin alpha1beta1 is a type of cell surface protein that plays a crucial role in cell adhesion and migration. It is a heterodimeric protein composed of two subunits, alpha1 and beta1, which are encoded by separate genes. In the medical field, integrin alpha1beta1 is involved in various physiological processes, including tissue development, wound healing, and immune response. It is also expressed on the surface of many different types of cells, including fibroblasts, endothelial cells, and immune cells. Abnormalities in integrin alpha1beta1 expression or function have been linked to a variety of diseases, including cancer, cardiovascular disease, and autoimmune disorders. For example, integrin alpha1beta1 has been shown to play a role in the development and progression of breast cancer, and its expression has been associated with poor prognosis in patients with this disease. In addition, integrin alpha1beta1 is a target for therapeutic intervention in several diseases. For example, drugs that block the interaction between integrin alpha1beta1 and its ligands have been shown to be effective in treating certain types of cancer and autoimmune disorders.
Glycogen Synthase Kinase 3 (GSK3) is a family of serine/threonine protein kinases that play a crucial role in various cellular processes, including metabolism, cell signaling, and gene expression. In the medical field, GSK3 has been implicated in the development and progression of several diseases, including diabetes, neurodegenerative disorders, and cancer. GSK3 is activated by various stimuli, including stress, inflammation, and insulin resistance, and its activity is regulated by phosphorylation and dephosphorylation. When activated, GSK3 phosphorylates and inactivates glycogen synthase, the enzyme responsible for glycogen synthesis, leading to reduced glycogen storage in the liver and muscles. This can contribute to the development of diabetes and other metabolic disorders. In addition to its role in metabolism, GSK3 has also been implicated in the regulation of cell signaling pathways, including the Wnt signaling pathway, which plays a critical role in cell proliferation, differentiation, and survival. Dysregulation of GSK3 activity in the Wnt signaling pathway has been implicated in the development of several types of cancer, including colon, breast, and ovarian cancer. Overall, GSK3 is a key regulator of cellular processes and its dysregulation has been implicated in the development and progression of several diseases. As such, it is an important target for the development of new therapeutic strategies for these diseases.
In the medical field, RNA, Messenger (mRNA) refers to a type of RNA molecule that carries genetic information from DNA in the nucleus of a cell to the ribosomes, where proteins are synthesized. During the process of transcription, the DNA sequence of a gene is copied into a complementary RNA sequence called messenger RNA (mRNA). This mRNA molecule then leaves the nucleus and travels to the cytoplasm of the cell, where it binds to ribosomes and serves as a template for the synthesis of a specific protein. The sequence of nucleotides in the mRNA molecule determines the sequence of amino acids in the protein that is synthesized. Therefore, changes in the sequence of nucleotides in the mRNA molecule can result in changes in the amino acid sequence of the protein, which can affect the function of the protein and potentially lead to disease. mRNA molecules are often used in medical research and therapy as a way to introduce new genetic information into cells. For example, mRNA vaccines work by introducing a small piece of mRNA that encodes for a specific protein, which triggers an immune response in the body.
The cell membrane, also known as the plasma membrane, is a thin, flexible barrier that surrounds and encloses the cell. It is composed of a phospholipid bilayer, which consists of two layers of phospholipid molecules arranged tail-to-tail. The hydrophobic tails of the phospholipids face inward, while the hydrophilic heads face outward, forming a barrier that separates the inside of the cell from the outside environment. The cell membrane also contains various proteins, including channels, receptors, and transporters, which allow the cell to communicate with its environment and regulate the movement of substances in and out of the cell. In addition, the cell membrane is studded with cholesterol molecules, which help to maintain the fluidity and stability of the membrane. The cell membrane plays a crucial role in maintaining the integrity and function of the cell, and it is involved in a wide range of cellular processes, including cell signaling, cell adhesion, and cell division.
Estrogen Receptor beta (ER-beta) is a protein that is found in many tissues throughout the body, including the breast, uterus, brain, and bone. It is one of two types of estrogen receptors, the other being Estrogen Receptor alpha (ER-alpha). Estrogen is a hormone that plays a key role in the development and regulation of many bodily functions, including the menstrual cycle, pregnancy, and bone health. Estrogen binds to its receptors, including ER-beta, to initiate a cascade of cellular responses that can have a wide range of effects on the body. ER-beta has been shown to play a role in a variety of physiological processes, including bone metabolism, breast cancer, and cardiovascular disease. In particular, research has suggested that ER-beta may have protective effects against certain types of breast cancer, and may also play a role in regulating blood pressure and cholesterol levels. In the medical field, ER-beta is often studied as a potential target for the development of new drugs and therapies for a variety of conditions. For example, drugs that selectively target ER-beta may be useful for treating certain types of breast cancer or for preventing bone loss in postmenopausal women.
Glycopeptides are a class of biomolecules that consist of a peptide chain covalently linked to one or more carbohydrate molecules, also known as glycans. In the medical field, glycopeptides are often used as antibiotics to treat bacterial infections. They work by inhibiting the synthesis of bacterial cell walls, leading to cell lysis and death. Examples of glycopeptide antibiotics include vancomycin, teicoplanin, and dalbavancin. These antibiotics are often used to treat severe and resistant bacterial infections, such as those caused by methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin-resistant enterococci (VRE).
Recombinant fusion proteins are proteins that are produced by combining two or more genes in a single molecule. These proteins are typically created using genetic engineering techniques, such as recombinant DNA technology, to insert one or more genes into a host organism, such as bacteria or yeast, which then produces the fusion protein. Fusion proteins are often used in medical research and drug development because they can have unique properties that are not present in the individual proteins that make up the fusion. For example, a fusion protein might be designed to have increased stability, improved solubility, or enhanced targeting to specific cells or tissues. Recombinant fusion proteins have a wide range of applications in medicine, including as therapeutic agents, diagnostic tools, and research reagents. Some examples of recombinant fusion proteins used in medicine include antibodies, growth factors, and cytokines.
Transforming Growth Factor beta1 (TGF-β1) is a protein that plays a crucial role in regulating cell growth, differentiation, and tissue repair in the human body. It is a member of the transforming growth factor-beta (TGF-β) family of cytokines, which are signaling molecules that help to regulate various cellular processes. TGF-β1 is produced by a variety of cells, including fibroblasts, immune cells, and endothelial cells, and it acts on a wide range of cell types to regulate their behavior. In particular, TGF-β1 is known to play a key role in the regulation of fibrosis, which is the excessive accumulation of extracellular matrix proteins in tissues. TGF-β1 signaling is initiated when the protein binds to specific receptors on the surface of cells, which triggers a cascade of intracellular signaling events that ultimately lead to changes in gene expression and cellular behavior. TGF-β1 has been implicated in a wide range of medical conditions, including cancer, fibrosis, and autoimmune diseases, and it is the subject of ongoing research in the field of medicine.
DNA primers are short, single-stranded DNA molecules that are used in a variety of molecular biology techniques, including polymerase chain reaction (PCR) and DNA sequencing. They are designed to bind to specific regions of a DNA molecule, and are used to initiate the synthesis of new DNA strands. In PCR, DNA primers are used to amplify specific regions of DNA by providing a starting point for the polymerase enzyme to begin synthesizing new DNA strands. The primers are complementary to the target DNA sequence, and are added to the reaction mixture along with the DNA template, nucleotides, and polymerase enzyme. The polymerase enzyme uses the primers as a template to synthesize new DNA strands, which are then extended by the addition of more nucleotides. This process is repeated multiple times, resulting in the amplification of the target DNA sequence. DNA primers are also used in DNA sequencing to identify the order of nucleotides in a DNA molecule. In this application, the primers are designed to bind to specific regions of the DNA molecule, and are used to initiate the synthesis of short DNA fragments. The fragments are then sequenced using a variety of techniques, such as Sanger sequencing or next-generation sequencing. Overall, DNA primers are an important tool in molecular biology, and are used in a wide range of applications to study and manipulate DNA.
Biological transport refers to the movement of molecules, such as nutrients, waste products, and signaling molecules, across cell membranes and through the body's various transport systems. This process is essential for maintaining homeostasis, which is the body's ability to maintain a stable internal environment despite changes in the external environment. There are several mechanisms of biological transport, including passive transport, active transport, facilitated diffusion, and endocytosis. Passive transport occurs when molecules move down a concentration gradient, from an area of high concentration to an area of low concentration. Active transport, on the other hand, requires energy to move molecules against a concentration gradient. Facilitated diffusion involves the use of transport proteins to move molecules across the cell membrane. Endocytosis is a process by which cells take in molecules from the extracellular environment by engulfing them in vesicles. In the medical field, understanding the mechanisms of biological transport is important for understanding how drugs and other therapeutic agents are absorbed, distributed, metabolized, and excreted by the body. This knowledge can be used to design drugs that are more effective and have fewer side effects. It is also important for understanding how diseases, such as cancer and diabetes, affect the body's transport systems and how this can be targeted for treatment.
In the medical field, isoenzymes refer to different forms of enzymes that have the same chemical structure and catalytic activity, but differ in their amino acid sequence. These differences can arise due to genetic variations or post-translational modifications, such as phosphorylation or glycosylation. Isoenzymes are often used in medical diagnosis and treatment because they can provide information about the function and health of specific organs or tissues. For example, the presence of certain isoenzymes in the blood can indicate liver or kidney disease, while changes in the levels of specific isoenzymes in the brain can be indicative of neurological disorders. In addition, isoenzymes can be used as biomarkers for certain diseases or conditions, and can be targeted for therapeutic intervention. For example, drugs that inhibit specific isoenzymes can be used to treat certain types of cancer or heart disease.
In the medical field, a peptide fragment refers to a short chain of amino acids that are derived from a larger peptide or protein molecule. Peptide fragments can be generated through various techniques, such as enzymatic digestion or chemical cleavage, and are often used in diagnostic and therapeutic applications. Peptide fragments can be used as biomarkers for various diseases, as they may be present in the body at elevated levels in response to specific conditions. For example, certain peptide fragments have been identified as potential biomarkers for cancer, neurodegenerative diseases, and cardiovascular disease. In addition, peptide fragments can be used as therapeutic agents themselves. For example, some peptide fragments have been shown to have anti-inflammatory or anti-cancer properties, and are being investigated as potential treatments for various diseases. Overall, peptide fragments play an important role in the medical field, both as diagnostic tools and as potential therapeutic agents.
Receptors, Adrenergic, beta-3 (β3-adrenergic receptors) are a type of protein found on the surface of cells in the body that bind to and respond to the hormone adrenaline (also known as epinephrine). These receptors are part of the adrenergic receptor family, which also includes alpha-adrenergic receptors (α-adrenergic receptors) and beta-adrenergic receptors (β-adrenergic receptors). β3-adrenergic receptors are primarily found in adipose tissue (fat tissue) and smooth muscle cells. They play a role in regulating metabolism and energy expenditure, and are also involved in the regulation of blood pressure and heart rate. Activation of β3-adrenergic receptors can lead to a number of physiological effects, including increased lipolysis (the breakdown of fat), increased energy expenditure, and vasodilation (the widening of blood vessels). These effects make β3-adrenergic receptors an attractive target for the development of drugs for the treatment of obesity and related conditions, such as type 2 diabetes.
High-pressure liquid chromatography (HPLC) is a technique used in the medical field to separate and analyze complex mixtures of compounds. It involves the use of a liquid mobile phase that is forced through a column packed with a stationary phase under high pressure. The compounds in the mixture interact with the stationary phase to different extents, causing them to separate as they pass through the column. The separated compounds are then detected and quantified using a detector, such as a UV detector or a mass spectrometer. HPLC is commonly used in the analysis of drugs, biological samples, and other complex mixtures in the medical field.
In the medical field, the term "cattle" refers to large domesticated animals that are raised for their meat, milk, or other products. Cattle are a common source of food and are also used for labor in agriculture, such as plowing fields or pulling carts. In veterinary medicine, cattle are often referred to as "livestock" and may be treated for a variety of medical conditions, including diseases, injuries, and parasites. Some common medical issues that may affect cattle include respiratory infections, digestive problems, and musculoskeletal disorders. Cattle may also be used in medical research, particularly in the fields of genetics and agriculture. For example, scientists may study the genetics of cattle to develop new breeds with desirable traits, such as increased milk production or resistance to disease.
In the medical field, cell adhesion refers to the process by which cells stick to each other or to a surface. This is an essential process for the proper functioning of tissues and organs in the body. There are several types of cell adhesion, including: 1. Homophilic adhesion: This occurs when cells adhere to each other through the interaction of specific molecules on their surface. 2. Heterophilic adhesion: This occurs when cells adhere to each other through the interaction of different molecules on their surface. 3. Heterotypic adhesion: This occurs when cells adhere to each other through the interaction of different types of cells. 4. Intercellular adhesion: This occurs when cells adhere to each other through the interaction of molecules within the cell membrane. 5. Intracellular adhesion: This occurs when cells adhere to each other through the interaction of molecules within the cytoplasm. Cell adhesion is important for a variety of processes, including tissue development, wound healing, and the immune response. Disruptions in cell adhesion can lead to a variety of medical conditions, including cancer, autoimmune diseases, and inflammatory disorders.
Beta rhythm is a type of electrical activity that is measured using an electroencephalogram (EEG) and is associated with wakefulness and alertness. It is characterized by a frequency of 13-30 Hz and is typically observed in the frontal, central, and parietal regions of the brain. Beta rhythm is often increased during periods of mental activity, such as thinking, problem-solving, and attention, and is thought to play a role in cognitive function and consciousness. Abnormal beta rhythms, such as those seen in epilepsy, can also be important for diagnosing and treating neurological disorders.
Adrenergic beta-agonists are a class of drugs that mimic the effects of adrenaline (epinephrine) on the body. They work by binding to beta-adrenergic receptors, which are found on the surface of cells in various organs and tissues throughout the body, including the heart, lungs, and blood vessels. When adrenergic beta-agonists bind to these receptors, they stimulate the production of cyclic AMP (cAMP), which triggers a cascade of chemical reactions that ultimately leads to the relaxation of smooth muscle cells in the walls of blood vessels, bronchial tubes, and other organs. This results in dilation of blood vessels, bronchodilation, and increased heart rate and contractility. Adrenergic beta-agonists are used to treat a variety of medical conditions, including asthma, chronic obstructive pulmonary disease (COPD), heart failure, and certain types of arrhythmias. They are also used to treat acute bronchospasm, such as that caused by exercise or allergens, and to treat low blood pressure in patients who have undergone surgery or who are experiencing shock. Examples of adrenergic beta-agonists include albuterol, salbutamol, and terbutaline. These drugs are available in a variety of forms, including inhalers, tablets, and injectables.
Cysteine endopeptidases are a class of enzymes that cleave peptide bonds within proteins, specifically at the carboxyl side of a cysteine residue. These enzymes are involved in a variety of biological processes, including digestion, blood clotting, and the regulation of immune responses. They are also involved in the degradation of extracellular matrix proteins, which is important for tissue remodeling and repair. In the medical field, cysteine endopeptidases are often studied as potential therapeutic targets for diseases such as cancer, inflammatory disorders, and neurodegenerative diseases.
In the medical field, a multienzyme complex is a group of two or more enzymes that are physically and functionally linked together to form a single, larger enzyme complex. These complexes can work together to catalyze a series of sequential reactions, or they can work in parallel to carry out multiple reactions simultaneously. Multienzyme complexes are found in a variety of biological processes, including metabolism, DNA replication and repair, and signal transduction. They can be found in both prokaryotic and eukaryotic cells, and they can be composed of enzymes from different cellular compartments. One example of a multienzyme complex is the 2-oxoglutarate dehydrogenase complex, which is involved in the citric acid cycle and the metabolism of amino acids. This complex consists of three enzymes that work together to catalyze the conversion of 2-oxoglutarate to succinyl-CoA. Multienzyme complexes can have important implications for human health. For example, mutations in genes encoding enzymes in these complexes can lead to metabolic disorders, such as maple syrup urine disease and glutaric acidemia type II. Additionally, some drugs target specific enzymes in multienzyme complexes as a way to treat certain diseases, such as cancer.
In the medical field, disulfides refer to chemical compounds that contain two sulfur atoms connected by a single bond. Disulfides are commonly found in proteins, where they play an important role in maintaining the structure and function of the protein. One of the most well-known examples of a disulfide is the cystine molecule, which is composed of two cysteine amino acids that are linked together by a disulfide bond. Disulfide bonds are important for the proper folding and stability of proteins, and they can also play a role in the function of the protein. Disulfides can also be found in other types of molecules, such as lipids and carbohydrates. In these cases, disulfides may play a role in the structure and function of the molecule, or they may be involved in signaling pathways within the body. Overall, disulfides are an important class of chemical compounds that play a variety of roles in the body, including the maintenance of protein structure and function, and the regulation of signaling pathways.
DNA Polymerase beta (POLB) is an enzyme that plays a crucial role in DNA repair and replication in the human body. It is a member of the DNA polymerase family and is responsible for repairing DNA damage caused by various factors such as oxidative stress, radiation, and chemicals. POLB is involved in base excision repair (BER), a mechanism that corrects small base lesions in DNA. During BER, POLB synthesizes a new DNA strand by adding nucleotides to the 3' end of the damaged DNA strand. The new strand is then ligated to the undamaged strand by another enzyme called DNA ligase. In addition to its role in BER, POLB is also involved in other DNA repair pathways such as nucleotide excision repair (NER) and mismatch repair (MMR). POLB is also involved in the replication of mitochondrial DNA. Mutations in the POLB gene have been associated with various diseases, including cancer, neurodegenerative disorders, and premature aging. Therefore, understanding the function and regulation of POLB is important for developing new therapeutic strategies for these diseases.
Adrenergic beta-2 receptor agonists are a class of drugs that stimulate the beta-2 receptors in the body, leading to a variety of physiological effects. These receptors are found in many organs and tissues, including the heart, lungs, and blood vessels. When adrenergic beta-2 receptor agonists bind to these receptors, they cause the muscles in the airways to relax, making it easier to breathe. They also cause the heart to beat faster and harder, which can increase blood pressure and improve blood flow to the body's tissues. Adrenergic beta-2 receptor agonists are commonly used to treat a variety of conditions, including asthma, chronic obstructive pulmonary disease (COPD), and heart failure. They are also used to treat certain types of allergies and to relieve bronchospasm, which is a narrowing of the airways that can occur in response to exercise or other triggers. Some examples of adrenergic beta-2 receptor agonists include albuterol, salbutamol, and terbutaline. These drugs are available in a variety of forms, including inhalers, tablets, and injectables.
Beta-catenin is a protein that plays a crucial role in the regulation of cell adhesion and signaling pathways in the body. In the medical field, beta-catenin is often studied in the context of cancer, as mutations in the beta-catenin gene (CTNNB1) can lead to the development of various types of cancer, including colorectal cancer, endometrial cancer, and ovarian cancer. In normal cells, beta-catenin is a component of the cadherin adhesion complex, which helps cells stick together and maintain tissue integrity. However, in cancer cells, mutations in the beta-catenin gene can lead to the accumulation of beta-catenin in the cytoplasm and nucleus, where it can activate downstream signaling pathways that promote cell proliferation and survival. Beta-catenin is also involved in the regulation of other cellular processes, such as cell migration, differentiation, and apoptosis. As such, it is a potential target for the development of new cancer therapies.
Chromatography, Ion Exchange is a technique used in the medical field to separate and purify compounds based on their charge and size. It involves passing a solution containing the compounds of interest through a column packed with a resin that has charged functional groups. The charged functional groups on the resin interact with the charged compounds in the solution, causing them to be adsorbed onto the resin. The compounds are then eluted from the resin using a solvent that selectively dissolves the compounds based on their charge and size. This technique is commonly used in the purification of proteins, peptides, and other charged molecules used in medical research and drug development.
Receptors, Transforming Growth Factor beta (TGF-beta) are a type of cell surface receptor that play a crucial role in regulating cell growth, differentiation, and apoptosis. TGF-beta is a cytokine that is produced by a variety of cells and is involved in many physiological processes, including wound healing, tissue repair, and immune response. TGF-beta receptors are transmembrane proteins that consist of two subunits: a ligand-binding extracellular domain and a cytoplasmic domain that interacts with intracellular signaling molecules. When TGF-beta binds to its receptor, it triggers a signaling cascade that involves the activation of intracellular kinases and the production of Smad proteins, which then translocate to the nucleus and regulate gene expression. Abnormal regulation of TGF-beta signaling has been implicated in a variety of diseases, including cancer, fibrosis, and autoimmune disorders. Therefore, understanding the function and regulation of TGF-beta receptors is an important area of research in the medical field.
In the medical field, macromolecular substances refer to large molecules that are composed of repeating units, such as proteins, carbohydrates, lipids, and nucleic acids. These molecules are essential for many biological processes, including cell signaling, metabolism, and structural support. Macromolecular substances are typically composed of thousands or even millions of atoms, and they can range in size from a few nanometers to several micrometers. They are often found in the form of fibers, sheets, or other complex structures, and they can be found in a variety of biological tissues and fluids. Examples of macromolecular substances in the medical field include: - Proteins: These are large molecules composed of amino acids that are involved in a wide range of biological functions, including enzyme catalysis, structural support, and immune response. - Carbohydrates: These are molecules composed of carbon, hydrogen, and oxygen atoms that are involved in energy storage, cell signaling, and structural support. - Lipids: These are molecules composed of fatty acids and glycerol that are involved in energy storage, cell membrane structure, and signaling. - Nucleic acids: These are molecules composed of nucleotides that are involved in genetic information storage and transfer. Macromolecular substances are important for many medical applications, including drug delivery, tissue engineering, and gene therapy. Understanding the structure and function of these molecules is essential for developing new treatments and therapies for a wide range of diseases and conditions.
Viral envelope proteins are proteins that are found on the surface of enveloped viruses. These proteins play a crucial role in the viral life cycle, as they are involved in the attachment of the virus to host cells, entry into the host cell, and release of new virus particles from the host cell. There are several different types of viral envelope proteins, including glycoproteins, which are proteins that have attached carbohydrates, and matrix proteins, which help to stabilize the viral envelope. These proteins can be important targets for antiviral drugs, as they are often essential for the virus to infect host cells. In addition to their role in viral infection, viral envelope proteins can also play a role in the pathogenesis of viral diseases. For example, some viral envelope proteins can trigger an immune response in the host, leading to inflammation and tissue damage. Other viral envelope proteins can help the virus evade the host immune system, allowing the virus to persist and cause disease. Overall, viral envelope proteins are important components of enveloped viruses and play a critical role in the viral life cycle and pathogenesis of viral diseases.
Propanolamines are a class of organic compounds that contain a tertiary amine group attached to a propane chain. They are commonly used as pharmaceuticals and as active ingredients in over-the-counter cold and allergy medications. There are several different types of propanolamines, including pseudoephedrine, phenylephrine, and triprolidine. These drugs work by constricting blood vessels in the nasal passages and sinuses, reducing inflammation, and relieving congestion. They are also used to treat other conditions such as high blood pressure, heart failure, and certain types of asthma. Propanolamines can have side effects, including dizziness, dry mouth, and insomnia. They can also interact with other medications, so it is important to tell your doctor about all the medications you are taking before starting to use propanolamines. In some cases, propanolamines may be contraindicated for certain individuals, such as those with certain heart conditions or high blood pressure.
Receptors, Vitronectin are a type of protein receptors found on the surface of cells that bind to the protein vitronectin. Vitronectin is a plasma protein that plays a role in various physiological processes, including blood clotting, cell adhesion, and wound healing. The binding of vitronectin to its receptors on cells can trigger a variety of cellular responses, such as changes in cell shape, migration, and proliferation. In the medical field, the study of receptors, Vitronectin is important for understanding the mechanisms of various diseases, including cancer, cardiovascular disease, and autoimmune disorders.
In the medical field, a protein subunit refers to a smaller, functional unit of a larger protein complex. Proteins are made up of chains of amino acids, and these chains can fold into complex three-dimensional structures that perform a wide range of functions in the body. Protein subunits are often formed when two or more protein chains come together to form a larger complex. These subunits can be identical or different, and they can interact with each other in various ways to perform specific functions. For example, the protein hemoglobin, which carries oxygen in red blood cells, is made up of four subunits: two alpha chains and two beta chains. Each of these subunits has a specific structure and function, and they work together to form a functional hemoglobin molecule. In the medical field, understanding the structure and function of protein subunits is important for developing treatments for a wide range of diseases and conditions, including cancer, neurological disorders, and infectious diseases.
Beta karyopherins, also known as importins, are a family of proteins that play a crucial role in the transport of proteins into the nucleus of eukaryotic cells. They are responsible for recognizing specific nuclear localization signals (NLS) on the cargo proteins and facilitating their transport across the nuclear envelope. There are several subtypes of beta karyopherins, including importin alpha and importin beta, which form a heterodimeric complex that binds to the NLS on the cargo protein. The complex then interacts with the nuclear pore complex, a large protein complex that spans the nuclear envelope, and is transported into the nucleus. Beta karyopherins are involved in a wide range of cellular processes, including gene expression, DNA replication, and cell cycle regulation. Mutations in beta karyopherin genes have been linked to various human diseases, including cancer, neurological disorders, and developmental abnormalities.
Phospholipase C beta (PLCβ) is an enzyme that plays a crucial role in signal transduction pathways in the body. It is a member of the phospholipase C family of enzymes, which hydrolyze phosphatidylinositol 4,5-bisphosphate (PIP2) to produce inositol 1,4,5-trisphosphate (IP3) and diacylglycerol (DAG). IP3 and DAG are important second messengers that regulate various cellular processes, including calcium signaling, protein kinase C activation, and gene expression. PLCβ is activated by a variety of extracellular signals, including G protein-coupled receptors, tyrosine kinases, and integrins. In the medical field, PLCβ is of interest because it is involved in the pathophysiology of several diseases, including cancer, cardiovascular disease, and neurological disorders. For example, overexpression of PLCβ has been implicated in the development of certain types of cancer, such as breast and prostate cancer. PLCβ is also involved in the regulation of blood pressure and heart rate, and its dysfunction has been linked to hypertension and arrhythmias. Additionally, PLCβ plays a role in the regulation of neurotransmitter release and synaptic plasticity, and its dysfunction has been implicated in the pathophysiology of neurological disorders such as Alzheimer's disease and schizophrenia.
Adrenergic beta-antagonists are a class of drugs that block the action of adrenaline (epinephrine) and noradrenaline (norepinephrine) on beta-adrenergic receptors in the body. These receptors are found in various organs and tissues, including the heart, lungs, and blood vessels. When adrenaline and noradrenaline bind to beta-adrenergic receptors, they cause a number of physiological responses, such as increased heart rate, blood pressure, and bronchodilation. Adrenergic beta-antagonists work by blocking these receptors, thereby reducing the effects of adrenaline and noradrenaline. Adrenergic beta-antagonists are used to treat a variety of medical conditions, including high blood pressure, angina pectoris (chest pain), heart failure, and arrhythmias. They are also used to prevent migraines and to treat anxiety and panic disorders. Some common examples of adrenergic beta-antagonists include propranolol, atenolol, and metoprolol.
Fibronectins are a family of large, soluble glycoproteins that are found in the extracellular matrix of connective tissues. They are synthesized by a variety of cells, including fibroblasts, endothelial cells, and epithelial cells, and are involved in a wide range of cellular processes, including cell adhesion, migration, and differentiation. Fibronectins are composed of two large subunits, each containing three distinct domains: an N-terminal domain, a central domain, and a C-terminal domain. The central domain contains a high-affinity binding site for fibronectin receptors on the surface of cells, which allows cells to adhere to the extracellular matrix and migrate through it. Fibronectins play a critical role in the development and maintenance of tissues, and are involved in a variety of pathological processes, including wound healing, tissue fibrosis, and cancer. They are also important in the immune response, as they can bind to and activate immune cells, and can modulate the activity of various cytokines and growth factors.
Adrenergic beta-3 receptor agonists are a class of drugs that bind to and activate beta-3 receptors, which are found primarily in adipose tissue and smooth muscle cells. Activation of these receptors can lead to a variety of effects, including increased lipolysis (the breakdown of fat), increased energy expenditure, and vasodilation (the widening of blood vessels). Adrenergic beta-3 receptor agonists are being studied for their potential use in the treatment of obesity and other conditions, such as cardiovascular disease and diabetes. They are also being investigated as potential weight loss agents, as they may help to increase energy expenditure and reduce body fat. Some examples of adrenergic beta-3 receptor agonists include mirabegron (marketed as Myrbetriq) and BRL-37344. These drugs are typically administered orally and may have side effects, such as nausea, dizziness, and headache.
Hepatocyte Nuclear Factor 3-beta (HNF3β) is a transcription factor that plays a critical role in the development and function of the liver and other organs. It is encoded by the HNF3B gene, which is located on chromosome 12. HNF3β is involved in the regulation of genes that are essential for liver function, including those involved in glucose metabolism, bile acid synthesis, and detoxification. It also plays a role in the development of the pancreas, where it is involved in the differentiation of beta cells, which produce insulin. Mutations in the HNF3B gene can lead to a group of inherited disorders known as maturity-onset diabetes of the young (MODY), which is a form of diabetes that typically develops in childhood or adolescence. These disorders are caused by mutations that affect the function of the HNF3β protein, leading to impaired insulin production and glucose metabolism. In addition to its role in diabetes, HNF3β has also been implicated in the development of other diseases, including liver cancer and polycystic kidney disease.
Blotting, Western is a laboratory technique used to detect specific proteins in a sample by transferring proteins from a gel to a membrane and then incubating the membrane with a specific antibody that binds to the protein of interest. The antibody is then detected using an enzyme or fluorescent label, which produces a visible signal that can be quantified. This technique is commonly used in molecular biology and biochemistry to study protein expression, localization, and function. It is also used in medical research to diagnose diseases and monitor treatment responses.
Integrin alphaVbeta3 is a type of cell surface protein that plays a crucial role in cell adhesion, migration, and signaling. It is a heterodimeric protein composed of two subunits, alphaV and beta3, which are encoded by separate genes. In the medical field, integrin alphaVbeta3 is of particular interest because it is overexpressed on the surface of many cancer cells, including breast, ovarian, and prostate cancer cells. This overexpression makes it a potential target for cancer therapy. Several drugs have been developed that target integrin alphaVbeta3, including monoclonal antibodies and small molecule inhibitors. These drugs work by binding to the integrin and blocking its function, thereby inhibiting cancer cell adhesion and migration. This can lead to the inhibition of tumor growth and the prevention of metastasis. In addition to its role in cancer, integrin alphaVbeta3 is also involved in other medical conditions, such as inflammation, wound healing, and angiogenesis (the formation of new blood vessels).
Cytokines are small proteins that are produced by various cells of the immune system, including white blood cells, macrophages, and dendritic cells. They play a crucial role in regulating immune responses and inflammation, and are involved in a wide range of physiological processes, including cell growth, differentiation, and apoptosis. Cytokines can be classified into different groups based on their function, including pro-inflammatory cytokines, anti-inflammatory cytokines, and regulatory cytokines. Pro-inflammatory cytokines, such as tumor necrosis factor-alpha (TNF-alpha) and interleukin-1 (IL-1), promote inflammation and recruit immune cells to the site of infection or injury. Anti-inflammatory cytokines, such as interleukin-10 (IL-10) and transforming growth factor-beta (TGF-beta), help to dampen the immune response and prevent excessive inflammation. Regulatory cytokines, such as interleukin-4 (IL-4) and interleukin-13 (IL-13), help to regulate the balance between pro-inflammatory and anti-inflammatory responses. Cytokines play a critical role in many diseases, including autoimmune disorders, cancer, and infectious diseases. They are also important in the development of vaccines and immunotherapies.
Tumor Necrosis Factor-alpha (TNF-alpha) is a cytokine, a type of signaling protein, that plays a crucial role in the immune response and inflammation. It is produced by various cells in the body, including macrophages, monocytes, and T cells, in response to infection, injury, or other stimuli. TNF-alpha has multiple functions in the body, including regulating the immune response, promoting cell growth and differentiation, and mediating inflammation. It can also induce programmed cell death, or apoptosis, in some cells, which can be beneficial in fighting cancer. However, excessive or prolonged TNF-alpha production can lead to chronic inflammation and tissue damage, which can contribute to the development of various diseases, including autoimmune disorders, inflammatory bowel disease, and certain types of cancer. In the medical field, TNF-alpha is often targeted in the treatment of these conditions. For example, drugs called TNF inhibitors, such as infliximab and adalimumab, are used to block the action of TNF-alpha and reduce inflammation in patients with rheumatoid arthritis, Crohn's disease, and other inflammatory conditions.
Receptors, Nicotinic are a type of neurotransmitter receptor found in the nervous system that are activated by the neurotransmitter acetylcholine. These receptors are involved in a variety of physiological processes, including muscle contraction, heart rate regulation, and the regulation of breathing. They are also found in the brain and are thought to play a role in learning, memory, and mood regulation. In the medical field, the study of nicotinic receptors is important for understanding the effects of nicotine, which is the primary psychoactive substance in tobacco, as well as for the development of drugs for the treatment of conditions such as Alzheimer's disease and schizophrenia.
Mannosylglycoprotein endo-beta-mannosidase
Β-Mannosidase
Glycoside hydrolase family 1
Glycoside hydrolase family 2
Beta-mannosidosis
Mannosidase
Glycoside hydrolase family 26
Mannan endo-1,4-β-mannosidase
Manba
Katalin Susztak
List of diseases (L)
Arthrobacter alkaliphilus
Mannosidosis
Paucimannosylation
List of MeSH codes (D08)
Pseudogymnoascus destructans
List of MeSH codes (C18)
List of MeSH codes (C16)
Harry Schachter
Chromosome 20
Chromosome 5
Β-Galactosidase
Ei mechanism
List of skin conditions
Inulinase
Glycoside hydrolase
Chromosome 6
Chromosome 1
Mannose
Jamey Marth
Mannosylglycoprotein endo-beta-mannosidase - Wikipedia
MedlinePlus: Genes: M
Greenwood Genetic Center
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Golgi al1
- Structural Investigation of the Binding of 5-Substituted Swainsonine Analogues to Golgi alpha-Mannosidase II. (expasy.org)
Hydrolysis3
- In addition to endo-mannanase, the exo-acting enzymes beta-mannosidase and alfa-galactosidase are needed for complete hydrolysis of galacto(gluco)mannan. (lu.se)
- Glycoside hydrolases that catalyze the hydrolysis of alpha or beta linked MANNOSE . (lookformedical.com)
- Diseases caused by the loss of one or more enzymes involved in the hydrolysis of mannoside linkages (MANNOSIDASES). (ouhsc.edu)
Enzyme4
- Mannosylglycoprotein endo-beta-mannosidase (EC 3.2.1.152, endo-beta-mannosidase) is an enzyme. (wikipedia.org)
- Knockdown of ER mannosidase alpha class 1B member 1 and ER degradationenhancing alpha-mannosidase like protein 1 by siRNA or treatment with the mannosidase alpha class 1B member 1 inhibitor kifunensine rescued loss of NKA-beta in the ER, suggesting ER-associated degradation (ERAD) of the enzyme. (mpg.de)
- Furthermore, hypercapnia activated the unfolded protein response by promoting phosphorylation of inositol-requiring enzyme 1 alpha (IRE1 alpha), and treatment with an siRNA against IRE1 alpha prevented the decrease of NKA-beta in the ER. (mpg.de)
- The defects in enzyme activity are primarily associated with genetic mutation of the genes that codes for a particular mannosidase isoenzyme. (ouhsc.edu)
Characterization1
- Alkhayat AH, Kraemer SA, Leipprandt JR, Macek M, Kleijer WJ, Friderici KH , Human beta-mannosidase cDNA characterization and first identification of a mutation associated with human beta-mannosidosis. (coriell.org)
Acid5
- The assay uses 4-methylumbelliferyl substrates to measure the activities of acid sphingomyelinase, alpha-iduronidase, beta-glucosidase, and alpha-mannosidase. (ggc.org)
- In addition, significant proportions of the insulin-positive cells co-express additional peptides including glucagon and somatostatin, which are not really typically indicated in Loxistatin Acid manufacture mature beta cells [3C6]. (techuniq.com)
- Particularly, Rezania insulin release response of the ES-DBCs to blood sugar, they had been incapable to demonstrate an boost in MAFA appearance which can be needed Loxistatin Acid manufacture for the growth and controlled release of insulin noticed in mature beta-cells [10]. (techuniq.com)
- Right here, we explain a basic (five-stage) and shorter (25C30 times) process for the era of ES-DBCs through Defined Endoderm, Belly Pipe Endoderm, Pancreatic Progenitors, Endocrine Progenitor and finally Loxistatin Acid manufacture beta-like cell phases. (techuniq.com)
- As previously referred to by Russ studies of the ES-DBCs Loxistatin Acid manufacture produced using this brief process demonstrated crucial features of human being mature beta-cells and most remarkably their capability to feeling and respond to adjustments in normal blood sugar concentrations. (techuniq.com)
Genes1
- In bottom line, concentrating on chosen signaling paths for 25C30 times was enough to generate ES-DBCs verification of medications, little genes or molecules that may possess potential to influence beta-cell function. (techuniq.com)
Molecular1
- Prolonged incubation with alpha-mannosidase, however, caused no apparent change in the apparent molecular weight of tenascin subunits. (duke.edu)
Alpha4
- Carbohydrates consisting of between two (DISACCHARIDES) and ten MONOSACCHARIDES connected by either an alpha- or beta-glycosidic link. (lookformedical.com)
- In addition, inhibition of the inositol trisphosphate receptor decreased phosphorylation levels of IRE1 alpha in precision-cut lung slices and A549 cells, suggesting that Ca2+ efflux from the ER might be responsible for IRE1 alpha activation and ERAD of NKA-beta. (mpg.de)
- The far-UV circular dichroism spectrum indicates a predominance of beta-structure and a lack of collagen-like or alpha-helical structure. (duke.edu)
- HeLa cells transiently expressing GlcNAcT-1-HA-KDEL were fixed, immunolabeled for GlcNAcT-1-HA-KDEL (red) and endogenous alpha-mannosidase II (ManII, green), and examined by fluorescence microscopy. (cellimagelibrary.org)
Treatment1
- The ability to yield glucose-responsive pancreatic beta-cells from human pluripotent stem cells will facilitate the advancement of the cell replacement therapies for the treatment of Type 1 Diabetes. (techuniq.com)
Human2
- Exposing murine precision-cut lung slices and human alveolar epithelial A549 cells to elevated CO2 levels led to a rapid decrease of NKA-beta abundance in the ER and at the cell surface. (mpg.de)
- Although these differentiated cells possess many features of human being beta-cells, they fail to secrete insulin in response to blood sugar arousal. (techuniq.com)
Features1
- Get news directly from the Scholars Team, and stay up-to-date on the most recent Tips of the Month, announcements, features, and beta tests. (duke.edu)
MANBA2
Protein1
- Rod binding protein, Mannosyl-glycoprotein endo-beta-N-acetylglucosaminidase [Interproscan]. (ntu.edu.sg)
Lysosomal5
- Lysosomal beta-D-mannosidase is the last exoglycosidase involved in the sequential degradation of the N-glycosylproteins glycans. (nih.gov)
- Biochemical and histochemical analysis of lysosomal enzyme activities in caprine beta-mannosidosis. (nih.gov)
- Årsaken til alfamannosidose er arvelige forandringer (mutasjoner) i genet MAN2B1, som koder for enzymet lysosomal alfa-mannosidase (LAMAN). (frambu.no)
- Defects in the lysosomal form of the enzyme in humans result in a buildup of mannoside intermediate metabolites and the disease BETA-MANNOSIDOSIS . (nih.gov)
- Mutations in this gene are associated with beta-mannosidosis, a lysosomal storage disease that has a wide spectrum of neurological involvement. (nih.gov)
MANNOSE2
- Glycoside hydrolases that catalyze the hydrolysis of alpha or beta linked MANNOSE . (bvsalud.org)
- Exoglycosidase that cleaves the single beta-linked mannose residue from the non-reducing end of all N-linked glycoprotein oligosaccharides. (nih.gov)
Tryptophan1
- 5181 tryptophan synthase beta chain trpB BBZA01000003 CDS ARMA_0032 5369. (go.jp)
Precursor1
- exo-beta-D-glucosaminidase precursor [Amycolatopsis orientalis]. (usherbrooke.ca)
Family1
- This family contains beta-galactosidase, beta-mannosidase and beta-glucuronidase activities. (unl.edu)
Plant1
- BCman, a beta-mannanase from the plant root beneficial bacterium Bacillus subtilis Z-2, has a potential to be used in the production of mannooligosaccharide, which shows defense induction activity on both melon and tobacco, and plays an important role in the biological control of plant disease. (nih.gov)
History1
- The activity of serum beta-galactosidase in colon cancer patients with a history of alcohol and nicotine dependence: preliminary data. (edu.pl)
Type1
- I likhet med sykdommene aspartylglukosaminuri, fukosidose og sialidose (mukolipidose type I), er mannosidose en arvelig, medfødt stoffskiftesykdom med forstyrret nedbrytning av sukker- proteinforbindelser (glykoproteiner). (frambu.no)
Activity1
- Kinetic analysis reveals that BCman is an endo-beta-mannanase, specific for mannan, and has no activity on mannooligosaccharides. (nih.gov)
Factor1
- 33. Identification of transforming growth factor beta induced (TGFBI) as an immune-related prognostic factor in clear cell renal cell carcinoma (ccRCC). (nih.gov)