Proteins synthesized by organisms belonging to the phylum ARTHROPODA. Included in this heading are proteins from the subdivisions ARACHNIDA; CRUSTACEA; and HORSESHOE CRABS. Note that a separate heading for INSECT PROTEINS is listed under this heading.
Members of the phylum Arthropoda, composed of organisms having a hard, jointed exoskeleton and paired jointed legs. It includes the class INSECTS and the subclass ARACHNIDA, many species of which are important medically as parasites or as vectors of organisms capable of causing disease in man.
Arthropods, other than insects and arachnids, which transmit infective organisms from one host to another or from an inanimate reservoir to an animate host.
Arthropods of the class ARACHNIDA, order Araneae. Except for mites and ticks, spiders constitute the largest order of arachnids, with approximately 37,000 species having been described. The majority of spiders are harmless, although some species can be regarded as moderately harmful since their bites can lead to quite severe local symptoms. (From Barnes, Invertebrate Zoology, 5th ed, p508; Smith, Insects and Other Arthropods of Medical Importance, 1973, pp424-430)
A large subphylum of mostly marine ARTHROPODS containing over 42,000 species. They include familiar arthropods such as lobsters (NEPHROPIDAE), crabs (BRACHYURA), shrimp (PENAEIDAE), and barnacles (THORACICA).
A class of Arthropoda that includes SPIDERS; TICKS; MITES; and SCORPIONS.
A genus of bacteria comprised of a heterogenous group of gram-negative small rods and coccoid forms associated with arthropods. (From Bergey's Manual of Systematic Bacteriology, vol 1, 1984)
The relationships of groups of organisms as reflected by their genetic makeup.
The class Insecta, in the phylum ARTHROPODA, whose members are characterized by division into three parts: head, thorax, and abdomen. They are the dominant group of animals on earth; several hundred thousand different kinds having been described. Three orders, HEMIPTERA; DIPTERA; and SIPHONAPTERA; are of medical interest in that they cause disease in humans and animals. (From Borror et al., An Introduction to the Study of Insects, 4th ed, p1)
Venoms from animals of the phylum Arthropoda. Those most investigated are from scorpions and spiders of the class Arachnidae and from ant, bee, and wasp families of the Insecta order Hymenoptera. The venoms contain protein toxins, enzymes, and other bioactive substances and may be lethal to man.
Animals that have no spinal column.
A discipline or occupation concerned with the study of INSECTS, including the biology and the control of insects.
Remains, impressions, or traces of animals or plants of past geological times which have been preserved in the earth's crust.
Proteins found in any species of insect.
Arthropods of the order Scorpiones, of which 1500 to 2000 species have been described. The most common live in tropical or subtropical areas. They are nocturnal and feed principally on insects and other arthropods. They are large arachnids but do not attack man spontaneously. They have a venomous sting. Their medical significance varies considerably and is dependent on their habits and venom potency rather than on their size. At most, the sting is equivalent to that of a hornet but certain species possess a highly toxic venom potentially fatal to humans. (From Dorland, 27th ed; Smith, Insects and Other Arthropods of Medical Importance, 1973, p417; Barnes, Invertebrate Zoology, 5th ed, p503)
A phylum of metazoan invertebrates comprising the segmented worms, and including marine annelids (POLYCHAETA), freshwater annelids, earthworms (OLIGOCHAETA), and LEECHES. Only the leeches are of medical interest. (Dorland, 27th ed)
The process of cumulative change over successive generations through which organisms acquire their distinguishing morphological and physiological characteristics.
A genus of small beetles of the family Tenebrionidae; T. confusum is the "confused flour beetle".
INSECTS of the order Coleoptera, containing over 350,000 species in 150 families. They possess hard bodies and their mouthparts are adapted for chewing.
One of the largest orders of mostly marine CRUSTACEA, containing over 10,000 species. Like AMPHIPODA, the other large order in the superorder Peracarida, members are shrimp-like in appearance, have sessile compound eyes, and no carapace. But unlike Amphipoda, they possess abdominal pleopods (modified as gills) and their bodies are dorsoventrally flattened.
A yellowish fossil resin, the gum of several species of coniferous trees, found in the alluvial deposits of northeastern Germany. It is used in molecular biology in the analysis of organic matter fossilized in amber.
Blood-sucking acarid parasites of the order Ixodida comprising two families: the softbacked ticks (ARGASIDAE) and hardbacked ticks (IXODIDAE). Ticks are larger than their relatives, the MITES. They penetrate the skin of their host by means of highly specialized, hooked mouth parts and feed on its blood. Ticks attack all groups of terrestrial vertebrates. In humans they are responsible for many TICK-BORNE DISEASES, including the transmission of ROCKY MOUNTAIN SPOTTED FEVER; TULAREMIA; BABESIOSIS; AFRICAN SWINE FEVER; and RELAPSING FEVER. (From Barnes, Invertebrate Zoology, 5th ed, pp543-44)
Family of spider MITES, in the superfamily Tetranychoidea, suborder Trombidiformes.
Any arthropod of the subclass ACARI except the TICKS. They are minute animals related to the spiders, usually having transparent or semitransparent bodies. They may be parasitic on humans and domestic animals, producing various irritations of the skin (MITE INFESTATIONS). Many mite species are important to human and veterinary medicine as both parasite and vector. Mites also infest plants.
The process of cumulative change at the level of DNA; RNA; and PROTEINS, over successive generations.
Instinctual behavior pattern in which food is obtained by killing and consuming other species.
An order of parasitic, blood-sucking, wingless INSECTS with the common name of fleas.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.
Periodic casting off FEATHERS; HAIR; or cuticle. Molting is a process of sloughing or desquamation, especially the shedding of an outer covering and the development of a new one. This phenomenon permits growth in ARTHROPODS, skin renewal in AMPHIBIANS and REPTILES, and the shedding of winter coats in BIRDS and MAMMALS.
An arthropod subclass (Xiphosura) comprising the North American (Limulus) and Asiatic (Tachypleus) genera of horseshoe crabs.
A large, subclass of arachnids comprising the MITES and TICKS, including parasites of plants, animals, and humans, as well as several important disease vectors.
A plant genus of the family FABACEAE. Members contain STILBENES.
A diverse genus of minute freshwater CRUSTACEA, of the suborder CLADOCERA. They are a major food source for both young and adult freshwater fish.
The relationship between two different species of organisms that are interdependent; each gains benefits from the other or a relationship between different species where both of the organisms in question benefit from the presence of the other.

TCR-mediated activation of allergen-specific CD45RO(+) memory T lymphocytes results in down-regulation of cell-surface CXCR4 expression and a strongly reduced capacity to migrate in response to stromal cell-derived factor-1. (1/346)

The selective migration of functional T(h) lymphocyte subsets with different cytokine production profiles into inflamed tissue is likely to depend on the state of activation of the cells, as well as on the differential expression of various adhesion molecules and chemokine receptors. In this study, we have analyzed the effect of allergen-specific activation on the expression of the chemokine receptor CXCR4 on T lymphocytes. We show that stimulation of peripheral blood mononuclear cells from atopic patients with the allergen Der p results in down-regulation of CXCR4 surface expression on Der p-activated CD25(+)CD45RO(+) antigen-specific memory cells which was caused by a decrease in CXCR4 gene transcription and did not seem to be mediated by endogenous cytokines, such as IFN-gamma. In contrast, however, CXCR4 surface expression was enhanced on naive CD25(-)CD45RO(-) and resting CD25(-)CD45RO(+) memory T cells, as a result of the presence of endogenous IL-4, most likely produced by Der p-activated memory T cells. Antigen-specific CD25(+)CD45RO(+) T lymphocytes, purified 7 days after stimulation with Der p, had a strongly reduced capacity to migrate in response to stimulation with stromal cell-derived factor (SDF)-1, the ligand for CXCR4. Together, these results suggest that differential expression of CXCR4 on activated and resting T cells is due to the counteracting effects of TCR-mediated down-regulation and IL-4-mediated up-regulation of this chemokine receptor respectively, and furthermore indicate that antigen-activated memory T cells are unlikely to migrate into inflamed tissue in response to SDF-1.  (+info)

Functional and structural diversities of C-reactive proteins present in horseshoe crab hemolymph plasma. (2/346)

Limulin, a sialic-acid-binding and phosphorylethanolamine-binding hemagglutinin in the hemolymph plasma of the American horseshoe crab (Limulus polyphemus), is a hemolytic C-reactive protein [Armstrong, P.B., Swarnakar, S., Srimal, S., Misquith, S., Hahn, E.A., Aimes, R. T. & Quigley, J.P. (1996) J. Biol. Chem. 271, 14717-14721]. We have now identified three types of C-reactive protein in the plasma of the Japanese horseshoe crab (Tachypleus tridentatus), based on different affinities against fetuin-agarose and phosphorylethanolamine-agarose determined by quantitative precipitin assays using fetuin and an artificial phosphorylethanolamine-protein conjugate. Partial amino acid sequences of the isolated C-reactive proteins identified homologous proteins which were named Tachypleus tridentatus CRP-1 (tCRP-1), tCRP-2 and tCRP-3, each of which possibly constitute isoprotein mixtures. tCRP-2 and tCRP-3, but not tCRP-1, agglutinated mammalian erythrocytes. tCRP-1, the most abundant C-reative protein in the plasma, exhibited the highest affinity to the phosphorylethanolamine-protein conjugate but lacked both sialic-acid-binding and hemolytic activities. tCRP-2 bound to both fetuin-agarose and phosphorylethanolamine-agarose, and exhibited Ca2+-dependent hemolytic and sialic-acid-binding activities, suggestive of limulin-like properties. Furthermore, tCRP-2 exhibited a higher affinity to colominic acid, a bacterial polysialic acid. By contrast, tCRP-3 shows stronger hemolytic, sialic-acid-binding and hemagglutinating activities than tCRP-2. tCRP-3 has no affinity to phosphorylethanolamine-agarose, phosphorylethanolamine-protein conjugate and colominic acid. This suggests tCRP-3 is a novel hemolytic C-reactive protein lacking a common characteristic of phosphorylethanolamine-agarose binding affinity. Twenty-two clones of tCRPs with different deduced amino acid sequences were obtained by PCR using oligonucleotide primers based on the N-terminal and C-terminal sequences of tCRPs and with templates including genomic DNA and cDNA of hemocytes or hepatopancreas derived from one individual. The translation products of the tCRP clones possess high molecular diversity which falls into three related groups, consistent with classification based on their biological activities. Only tCRP-3 contained a unique hydrophobic nonapeptide sequence that appears in the transmembrane domain of a major histocompatibility complex class I heavy chain of rainbow trout, suggesting the importance of the hydrophobic patch to the hemolytic activity of tCRP-3. The structural and functional diversities of tCRPs provide a good model for studying the properties of innate immunity in invertebrates, which survive without the benefit of acquired immunity.  (+info)

A remarkable, precisely timed release of hyperglycemic hormone from endocrine cells in the gut is associated with ecdysis in the crab Carcinus maenas. (3/346)

Molting or ecdysis is the most fundamentally important process in arthropod life history, because shedding of the exoskeleton is an absolute prerequisite for growth and metamorphosis. Although the hormonal mechanisms driving ecdysis in insects have been studied extensively, nothing is known about these processes in crustaceans. During late premolt and during ecdysis in the crab Carcinus maenas, we observed a precise and reproducible surge in hemolymph hyperglycemic hormone (CHH) levels, which was over 100-fold greater than levels seen in intermolt animals. The source of this hormone surge was not from the eyestalk neurosecretory tissues but from previously undescribed endocrine cells (paraneurons), in defined areas of the foregut and hindgut. During premolt (the only time when CHH is expressed by these tissues), the gut is the largest endocrine tissue in the crab. The CHH surge, which is a result of an unusual, almost complete discharge of the contents of the gut endocrine cell, regulates water and ion uptake during molting, thus allowing the swelling necessary for successful ecdysis and the subsequent increase in size during postmolt. This study defines an endocrine brain/gut axis in the arthropods. We propose that the ionoregulatory process controlled by CHH may be common to arthropods, in that, for insects, a similar mechanism seems to be involved in antidiuresis. It also seems likely that a cascade of very precisely coordinated release of (neuro) hormones controls ecdysis.  (+info)

Characterization of an alpha-macroglobulin-like glycoprotein isolated from the plasma of the soft tick Ornithodoros moubata. (4/346)

We report the identification of the first representative of the alpha-2-macroglobulin family identified in terrestrial invertebrates. An abundant acidic glycoprotein was isolated from the plasma of the soft tick Ornithodoros moubata. Its molecular mass is about 420 kDa in the native state, whereas in SDS/PAGE it migrates as one band of 190 kDa under nonreducing conditions and a band of 92 kDa when reduced. Chemical deglycosylation reveals that it is composed of two different subunits, designated A and B. The N-terminal amino-acid sequence of subunit A is similar to the N-terminus of invertebrate alpha-2-macroglobulin. Sequence analysis of several internal peptides confirms that the tick protein belongs to the alpha-2-macroglobulin family, and the protein is therefore referred to as tick alpha-macroglobulin (TAM). Functional analyses strengthen this assignment. TAM inhibits trypsin and thermolysin cleavage of the high-molecular-weight substrate azocoll in a manner similar to that of bovine alpha-2-macroglobulin. This effect is abolished by pre-treatment of TAM with methylamine. In the presence of TAM, trypsin is protected against active-site inhibition by soybean trypsin inhibitor. We cloned and sequenced a PCR product containing sequences from both subunits and spanning the N-terminus of subunit B and the putative 'bait region' (a segment of alpha-2-macroglobulin which serves as target for various proteases). This indicates that the two subunits are generated from a precursor polypeptide by post-translational processing.  (+info)

Cloning and characterization of a novel nuclease from shrimp hepatopancreas, and prediction of its active site. (5/346)

Approximately 95% of the amino acid sequence of a shrimp (Penaeus japonicus) nuclease was derived from protease-digested peptides. A 1461-base cDNA for the nuclease was amplified and sequenced with degenerate primers based on the amino acid sequence and then specific primers by 3' and 5' RACE (rapid amplification of cDNA ends). It contains an open reading frame encoding a putative 21-residue signal peptide and a 381-residue mature protein. The N-terminus of the enzyme is pyroglutamate, deduced from composition and matrix-assisted laser desorption ionization-time-of-flight MS analyses, and confirmed by a glutamine residue in the cDNA sequence. The enzyme has 11 Cys residues, forming five intramolecular disulphides. The eleventh Cys residue was linked to a thiol compound with an estimated molecular mass of between 500 and 700 Da. A sequence similarity search revealed no homologous proteins but residues 205-255 shared a conserved active-site motif within a distinct group of nucleases. His(211) in this conserved motif was shown to be very important in catalysis by site-specific modification with (14)C-labelled iodoacetate. The shrimp nuclease, previously designated DNase I, does indeed possess a low level of hydrolytic activity towards RNA in the presence of Mg(2+) and Ca(2+). The conservation of functionally important residues during distant evolution might imply that the catalytic mechanisms are similar in these nucleases, which should be classified in one subfamily. Finally, an active-site structure for shrimp nuclease was proposed on the basis of published structural data and the results of mutational and biochemical analyses of Serratia nuclease.  (+info)

Structure of tick anticoagulant peptide at 1.6 A resolution complexed with bovine pancreatic trypsin inhibitor. (6/346)

The structure of tick anticoagulant peptide (TAP) has been determined by X-ray crystallography at 1.6 A resolution complexed with bovine pancreatic trypsin inhibitor (BPTI). The TAP-BPTI crystals are tetragonal, a = b = 46.87, c = 50.35 A, space group P41, four complexes per unit cell. The TAP molecules are highly dipolar and form an intermolecular helical array along the c-axis with a diameter of about 45 A. Individual TAP units interact in a head-to-tail fashion, the positive end of one molecule associating with the distal negative end of another, and vice versa. The BPTI molecules have a uniformly distributed positively charged surface that interacts extensively through 14 hydrogen bonds and two hydrogen bonded salt bridges with the helical groove around the helical TAP chains. Comparing the structure of TAP in TAP-BPTI with TAP bound to factor Xa(Xa) suggests a massive reorganization in the N-terminal tetrapeptide and the first disulfide loop of TAP (Cys5T-Cys15T) upon binding to Xa. The Tyr1(T)OH atom of TAP moves 14.2 A to interact with Asp189 of the S1 specificity site, Arg3(T)CZ moves 5.0 A with the guanidinium group forming a cation-pi-electron complex in the S4 subsite of Xa, while Lys7(T)NZ differs in position by 10.6 A in TAP-BPTI and TAP-Xa, all of which indicates a different pre-Xa-bound conformation for the N-terminal of TAP in its native state. In contrast to TAP, the BPTI structure of TAP-BPTI is practically the same as all those of previously determined structures of BPTI, only arginine and lysine side-chain conformations showing significant differences.  (+info)

The underlying mechanism for the diversity of disulfide folding pathways. (7/346)

The disulfide folding pathway of bovine pancreatic trypsin inhibitor (BPTI) is characterized by the predominance of folding intermediates with native-like structures. Our laboratory has recently analyzed the folding pathway(s) of four 3-disulfide-containing proteins, including hirudin, potato carboxypeptidase inhibitor, epidermal growth factor, and tick anticoagulant peptide. Their folding mechanism(s) differ from that of BPTI by 1) a higher degree of heterogeneity of 1- and 2-disulfide intermediates and 2) the presence of 3-disulfide scrambled isomers as folding intermediates. To search for the underlying causes of these diversities, we conducted kinetic analyses of the reductive unfolding of these five proteins. The experiment of reductive unfolding was designed to evaluate the relative stability and interdependence of disulfide bonds in the native protein. It is demonstrated here that among these five proteins, there exists a striking correlation between the mechanism(s) of reductive unfolding and that of oxidative folding. Those proteins with their native disulfide bonds reduced in a collective and simultaneous manner exhibit both a high degree of heterogeneity of folding intermediates and the accumulation of scrambled isomers along the folding pathway. A sequential reduction of the native disulfide bonds is associated with the presence of predominant intermediates with native- like structures.  (+info)

Synthetic endotoxin-binding peptides block endotoxin-triggered TNF-alpha production by macrophages in vitro and in vivo and prevent endotoxin-mediated toxic shock. (8/346)

Lipid A, the conserved portion of endotoxin, is the major mediator of septic shock; therefore, endotoxin-neutralizing molecules could have important clinical applications. Here we show that peptides derived from Limulus anti-LPS factor (LALF), bactericidal/permeability increasing protein (BPI) and endotoxin-binding protein, bind to lipid A and block the recombinant LALF/lipid A interaction in vitro. Because their neutralizing capacity in vitro as well as in vivo has been limited, we created hybrid peptides comprising two endotoxin-binding domains. The hybrid molecule LL-10-H-14, containing endotoxin-binding domains from LALF and endotoxin-binding protein, turned out to be the most active peptide within the series of peptides tested here to inhibit the CD14/lipid A interaction and is able in vitro to block the endotoxin-induced TNF-alpha release of murine macrophages up to 90%. Furthermore, LL-10-H-14 not only reduced peak serum levels of TNF-alpha of mice when preinjected but also reduced TNF-alpha levels when given 15 min after the endotoxin challenge. As compared with other peptides, only LL-10-H-14 is able to strongly decrease endotoxin-stimulated TNF-alpha release by human macrophage cell lines as well as by PBMC. Furthermore, the hybrid peptide is protective against endotoxin-provoked lethal shock. As such, LL-10-H-14 could have prophylactic and/or therapeutic properties in humans for the management of septic shock.  (+info)

Arthropods are a phylum of animals that includes insects, spiders, crustaceans, and other creatures with jointed appendages. Arthropod proteins, therefore, refer to the proteins that are found in these organisms. These proteins play various roles in the structure, function, and regulation of arthropod cells, tissues, and organs.

Arthropod proteins can be classified into several categories based on their functions, such as structural proteins, enzymes, signaling proteins, and defense proteins. Structural proteins provide support and protection to the arthropod exoskeleton, which is composed mainly of chitin and proteins. Enzymes are proteins that catalyze chemical reactions in arthropod metabolism, while signaling proteins regulate various physiological processes, including growth, development, and reproduction. Defense proteins protect arthropods from pathogens, parasites, and environmental stressors.

Arthropod proteins have attracted significant interest in biomedical research due to their potential applications in drug discovery, vaccine development, and diagnostic tools. For example, some arthropod proteins have been identified as promising targets for the development of new insecticides and antiparasitic drugs. Additionally, arthropod-derived proteins have been used in the production of recombinant vaccines against infectious diseases such as Lyme disease and malaria.

Understanding the structure and function of arthropod proteins is essential for advancing our knowledge of arthropod biology, evolution, and ecology. It also has important implications for human health, agriculture, and environmental conservation.

Arthropods are a phylum of animals characterized by the presence of a segmented body, a pair of jointed appendages on each segment, and a tough exoskeleton made of chitin. This phylum includes insects, arachnids (spiders, scorpions, mites), crustaceans (crabs, lobsters, shrimp), and myriapods (centipedes, millipedes). They are the largest group of animals on Earth, making up more than 80% of all described species. Arthropods can be found in nearly every habitat, from the deep sea to mountaintops, and play important roles in ecosystems as decomposers, pollinators, and predators.

Arthropod vectors are living organisms, specifically arthropods such as mosquitoes, ticks, fleas, and lice, that can transmit infectious agents (such as viruses, bacteria, or parasites) from one host to another. This process is called vector-borne transmission. The arthropod vectors become infected with the pathogen while taking a blood meal from an infected host, then transmit the pathogen to another host during subsequent feedings. The transmission can occur through various means, including biting, stinging, or even mechanical contact. It's important to note that not all arthropods are vectors, and only certain species within each group are capable of transmitting diseases.

I'm sorry for any confusion, but "spiders" is not a term that has a specific medical definition. It is a common name used to refer to arachnids of the order Araneae, characterized by having two main body parts (the cephalothorax and abdomen), eight legs, and fangs that inject venom.

However, in a medical context, "spider" or "spider bite" may be used to describe skin lesions or reactions resulting from the bite of certain spiders, particularly those with medically significant venoms. For example, necrotic arachnidism is a condition caused by the bite of some spider species, such as recluse spiders (Loxosceles spp.). The bites can cause skin necrosis and other systemic symptoms in severe cases.

If you are looking for information on a specific medical topic or condition, please provide more details so I can offer a more accurate response.

Crustacea is a subphylum of Arthropoda, which is a phylum that includes animals without backbones and with jointed appendages. Crustaceans are characterized by their segmented bodies, usually covered with a hard exoskeleton made of chitin, and paired, jointed limbs.

Examples of crustaceans include crabs, lobsters, shrimps, crayfish, krill, barnacles, and copepods. Many crustaceans are aquatic, living in both freshwater and marine environments, while some are terrestrial. They can vary greatly in size, from tiny planktonic organisms to large crabs and lobsters.

Crustaceans have a complex life cycle that typically involves several distinct stages, including larval and adult forms. They are an important part of many aquatic ecosystems, serving as both predators and prey. Crustaceans also have economic importance as a source of food for humans, with crabs, lobsters, and shrimps being among the most commonly consumed.

Arachnida is a class of joint-legged invertebrate animals that includes spiders, scorpions, mites, and ticks. They are characterized by having two main body segments (the cephalothorax and the abdomen), eight legs, and simple eyes. Most arachnids produce silk, which they use for various purposes such as capturing prey or building shelters.

Arachnids are arthropods, a group that also includes insects, crustaceans, and other related animals. They are found worldwide in diverse habitats, ranging from forests and grasslands to deserts and caves. Many arachnids are predators, feeding on insects and other small animals. Some species are parasites, living on the blood or tissue of other organisms.

Arachnids have a hard exoskeleton made of chitin, which provides protection and support for their soft internal organs. They molt periodically to grow and replace damaged body parts. Arachnids also have a complex reproductive system that involves the transfer of sperm from the male to the female through specialized structures called pedipalps.

While some arachnids are harmless or even beneficial to humans, others can be dangerous or pests. For example, spider bites can cause painful reactions and in rare cases, death. Ticks and mites can transmit diseases such as Lyme disease and scrub typhus. Scorpions can deliver venomous stings that can be fatal to humans. Despite these risks, arachnids play important roles in ecosystems, controlling pests and contributing to nutrient cycling.

Wolbachia is a genus of intracellular bacteria that naturally infects a wide variety of arthropods (insects, spiders, mites) and filarial nematodes (roundworms). These bacteria are transmitted vertically from mother to offspring, often through the cytoplasm of eggs. Wolbachia can manipulate the reproductive biology of their hosts in various ways, such as feminization, parthenogenesis, male killing, and cytoplasmic incompatibility, which favor the spread and maintenance of the bacteria within host populations. The interactions between Wolbachia and their hosts have implications for insect pest management, disease transmission, and evolutionary biology.

Phylogeny is the evolutionary history and relationship among biological entities, such as species or genes, based on their shared characteristics. In other words, it refers to the branching pattern of evolution that shows how various organisms have descended from a common ancestor over time. Phylogenetic analysis involves constructing a tree-like diagram called a phylogenetic tree, which depicts the inferred evolutionary relationships among organisms or genes based on molecular sequence data or other types of characters. This information is crucial for understanding the diversity and distribution of life on Earth, as well as for studying the emergence and spread of diseases.

I apologize for any confusion, but "insects" are not a medical term. Insects are small air-breathing arthropods that have a segmented body with six legs and usually have wings. They make up the largest group of animals on Earth, with over a million described species.

If you're looking for information about a specific medical condition or topic, please provide more details so I can offer a relevant response.

Arthropod venoms are toxic secretions produced by the venom glands of various arthropods, such as spiders, scorpions, insects, and marine invertebrates. These venoms typically contain a complex mixture of bioactive molecules, including peptides, proteins, enzymes, and small molecules, which can cause a range of symptoms and effects in humans and other animals.

The specific composition of arthropod venoms varies widely depending on the species and can be tailored to serve various functions, such as prey immobilization, defense, or predation. Some arthropod venoms contain neurotoxins that can disrupt nerve function and cause paralysis, while others may contain cytotoxins that damage tissues or hemotoxins that affect the blood and cardiovascular system.

Arthropod venoms have been studied for their potential therapeutic applications, as some of their bioactive components have shown promise in treating various medical conditions, including pain, inflammation, and neurological disorders. However, it is important to note that arthropod venoms can also cause severe allergic reactions and other adverse effects in susceptible individuals, making it essential to exercise caution when handling or coming into contact with venomous arthropods.

I'm sorry for any confusion, but "Invertebrates" is not a medical term. It is a term used in biology to describe a vast group of animals that do not have a vertebral column or spinal cord. This includes creatures such as insects, worms, starfish, and shellfish, among many others. They are classified as invertebrates because they lack a backbone, which is a characteristic of vertebrates, or animals that include humans and other mammals, birds, reptiles, amphibians, and fish.

Entomology is the scientific study of insects, including their behavior, classification, and evolution. It is a branch of zoology that deals with the systematic study of insects and their relationship with humans, animals, and the environment. Entomologists may specialize in various areas such as medical entomology, agricultural entomology, or forensic entomology, among others. Medical entomology focuses on the study of insects that can transmit diseases to humans and animals, while agricultural entomology deals with insects that affect crops and livestock. Forensic entomology involves using insects found in crime scenes to help determine the time of death or other relevant information for legal investigations.

In medical terms, "fossils" do not have a specific or direct relevance to the field. However, in a broader scientific context, fossils are the remains or impressions of prehistoric organisms preserved in petrified form or as a mold or cast in rock. They offer valuable evidence about the Earth's history and the life forms that existed on it millions of years ago.

Paleopathology is a subfield of paleontology that deals with the study of diseases in fossils, which can provide insights into the evolution of diseases and human health over time.

I'm sorry for any confusion, but "Insect Proteins" is not a recognized medical term. However, I can provide some information about insect protein from a nutritional and food science perspective.

Insect proteins refer to the proteins that are obtained from insects. Insects are a rich source of protein, and their protein content varies by species. For example, mealworms and crickets have been found to contain approximately 47-63% and 60-72% protein by dry weight, respectively.

In recent years, insect proteins have gained attention as a potential sustainable source of nutrition due to their high protein content, low environmental impact, and the ability to convert feed into protein more efficiently compared to traditional livestock. Insect proteins can be used in various applications such as food and feed additives, nutritional supplements, and even cosmetics.

However, it's important to note that the use of insect proteins in human food is not widely accepted in many Western countries due to cultural and regulatory barriers. Nonetheless, research and development efforts continue to explore the potential benefits and applications of insect proteins in the global food system.

I believe there may be some confusion in your question as "scorpions" are not a medical term, but instead refer to a type of arachnid. If you're asking about a medical condition that might involve scorpions, then perhaps you're referring to "scorpion stings."

Scorpion stings occur when a scorpion uses its venomous stinger to inject venom into another animal or human. The effects of a scorpion sting can vary greatly depending on the species of scorpion and the amount of venom injected, but generally, they can cause localized pain, swelling, and redness at the site of the sting. In more severe cases, symptoms such as numbness, difficulty breathing, muscle twitching, or convulsions may occur. Some species of scorpions have venom that can be life-threatening to humans, especially in children, the elderly, and those with compromised immune systems.

If you are looking for information on a specific medical condition or term, please provide more details so I can give you a more accurate answer.

Annelida is a phylum of bilaterally symmetrical, segmented animals that includes earthworms, leeches, and marine polychaetes (bristle worms). The name "Annelida" comes from the Latin word "annellus," meaning "little ring," which refers to the distinct segments found in these animals.

Each segment in annelids contains a pair of bundled nerves called the ventral nerve cord, and many also contain circular and longitudinal muscles that enable the animal to move by contracting and relaxing these muscles in a wave-like motion. Some annelids have specialized segments for functions such as reproduction or respiration.

Annelids are primarily aquatic animals, although some terrestrial species like earthworms have evolved to live on land. They vary in size from tiny marine worms that are only a few millimeters long to large marine polychaetes that can reach over a meter in length.

Annelids are important decomposers and help break down dead organic matter, returning nutrients to the soil or water. Some species of annelids are also parasitic, feeding on the blood or tissues of other animals. Overall, annelids play a crucial role in many aquatic and terrestrial ecosystems.

Biological evolution is the change in the genetic composition of populations of organisms over time, from one generation to the next. It is a process that results in descendants differing genetically from their ancestors. Biological evolution can be driven by several mechanisms, including natural selection, genetic drift, gene flow, and mutation. These processes can lead to changes in the frequency of alleles (variants of a gene) within populations, resulting in the development of new species and the extinction of others over long periods of time. Biological evolution provides a unifying explanation for the diversity of life on Earth and is supported by extensive evidence from many different fields of science, including genetics, paleontology, comparative anatomy, and biogeography.

"Tribolium" is not a term commonly used in medical definitions. It is actually the name of a genus of beetles, also known as flour beetles, which are often used in scientific research, particularly in the fields of genetics and evolution. If you have any confusion with a specific medical context where this term was used, I would recommend checking the source again for clarification.

"Beetles" is not a medical term. It is a common name used to refer to insects belonging to the order Coleoptera, which is one of the largest orders in the class Insecta. Beetles are characterized by their hardened forewings, known as elytra, which protect their hind wings and body when not in use for flying.

There are many different species of beetles found all over the world, and some can have an impact on human health. For example, certain types of beetles, such as bed bugs and carpet beetles, can cause skin irritation and allergic reactions in some people. Other beetles, like the Colorado potato beetle, can damage crops and lead to economic losses for farmers. However, it is important to note that most beetles are not harmful to humans and play an essential role in ecosystems as decomposers and pollinators.

Isopoda is an order of crustaceans characterized by having a body that is usually laterally compressed, a pair of antennae, and seven pairs of legs (periopods) along the thorax. They are commonly known as "isopods" and include various familiar forms such as woodlice, pill bugs, and sea slaters. Isopods vary in size from less than a millimeter to over 50 centimeters in length. Some isopod species are terrestrial, while others are freshwater or marine dwellers. Medical relevance of isopods is limited, but some species can be vectors for diseases or parasites affecting fish and other aquatic animals.

"Amber" is not a medical term. It is a fossilized tree resin that is often used in jewelry and ornamental objects. Amber can sometimes contain preserved insects, plants, and other organic material that became trapped in the resin millions of years ago. While amber itself is not a medical term, it may be mentioned in a medical context if it is used as a decorative element in medical equipment or if it contains inclusions of potential interest to paleopathology, the study of ancient diseases.

A medical definition of "ticks" would be:

Ticks are small, blood-sucking parasites that belong to the arachnid family, which also includes spiders. They have eight legs and can vary in size from as small as a pinhead to about the size of a marble when fully engorged with blood. Ticks attach themselves to the skin of their hosts (which can include humans, dogs, cats, and wild animals) by inserting their mouthparts into the host's flesh.

Ticks can transmit a variety of diseases, including Lyme disease, Rocky Mountain spotted fever, anaplasmosis, ehrlichiosis, and babesiosis. It is important to remove ticks promptly and properly to reduce the risk of infection. To remove a tick, use fine-tipped tweezers to grasp the tick as close to the skin's surface as possible and pull upward with steady, even pressure. Do not twist or jerk the tick, as this can cause the mouthparts to break off and remain in the skin. After removing the tick, clean the area with soap and water and disinfect the tweezers.

Preventing tick bites is an important part of protecting against tick-borne diseases. This can be done by wearing protective clothing (such as long sleeves and pants), using insect repellent containing DEET or permethrin, avoiding wooded and brushy areas with high grass, and checking for ticks after being outdoors.

Tetranychidae is a family of mites, also known as spider mites. These are small arachnids that are characterized by the presence of four pairs of legs in their adult stage. They are often found on the undersides of leaves and can feed on plant material, causing damage to crops and ornamental plants. Some species of Tetranychidae are significant agricultural pests.

The term "Tetranychidae" is not typically used in a medical context, as these mites do not pose a direct threat to human health. However, they can cause allergic reactions in some people and may indirectly affect human health by damaging food crops.

Mites are tiny arthropods belonging to the class Arachnida, which also includes spiders and ticks. They are characterized by their small size, usually measuring less than 1 mm in length, and their lack of obvious segmentation on their bodies. Many mites are parasitic, feeding on the skin cells, blood, or fluids of plants and animals, including humans. Some common mite infestations in humans include scabies, caused by the itch mite (Sarcoptes scabiei), and dust mites (e.g., Dermatophagoides pteronyssinus and D. farinae), which are commonly found in household dust and can cause allergic reactions in some people. It's worth noting that the majority of mites are not harmful to humans and play important roles in ecosystems as decomposers and predators.

Molecular evolution is the process of change in the DNA sequence or protein structure over time, driven by mechanisms such as mutation, genetic drift, gene flow, and natural selection. It refers to the evolutionary study of changes in DNA, RNA, and proteins, and how these changes accumulate and lead to new species and diversity of life. Molecular evolution can be used to understand the history and relationships among different organisms, as well as the functional consequences of genetic changes.

In the context of mental health and psychology, "predatory behavior" is not a term that is commonly used as a medical diagnosis or condition. However, it generally refers to aggressive or exploitative behavior towards others with the intention of taking advantage of them for personal gain or pleasure. This could include various types of harmful behaviors such as sexual harassment, assault, stalking, bullying, or financial exploitation.

In some cases, predatory behavior may be associated with certain mental health conditions, such as antisocial personality disorder or psychopathy, which are characterized by a disregard for the rights and feelings of others. However, it's important to note that not all individuals who engage in predatory behavior have a mental health condition, and many people who do may not necessarily exhibit these behaviors.

If you or someone else is experiencing harm or exploitation, it's important to seek help from a trusted authority figure, such as a healthcare provider, law enforcement officer, or social worker.

Siphonaptera is the scientific order that includes fleas. Fleas are small, wingless insects with laterally compressed bodies and strong legs adapted for jumping. They are external parasites, living by hematophagy off the blood of mammals and birds. Fleas can be a nuisance to their hosts, and some people and animals have allergic reactions to flea saliva. Fleas can also transmit diseases, such as bubonic plague and murine typhus, and parasites like tapeworms.

Molecular sequence data refers to the specific arrangement of molecules, most commonly nucleotides in DNA or RNA, or amino acids in proteins, that make up a biological macromolecule. This data is generated through laboratory techniques such as sequencing, and provides information about the exact order of the constituent molecules. This data is crucial in various fields of biology, including genetics, evolution, and molecular biology, allowing for comparisons between different organisms, identification of genetic variations, and studies of gene function and regulation.

"Molting" is not a term typically used in medical contexts. It is primarily used to describe the shedding and replacement of feathers, hair, or skin in animals, including birds, reptiles, insects, and other invertebrates. In humans and other mammals, this process is more commonly referred to as "shedding" or "growing new hair/skin."

However, if you are referring to the medical term "molt," it is a rare genetic disorder that affects the skin's pigmentation and causes it to shed in patches. It is also known as "congenital ichthyosiform erythroderma" or "non-bullous congenital ichthyosiform erythroderma." The condition is present at birth, and affected individuals have red, scaly skin that sheds in a pattern similar to snake skin. Molting is not contagious and has no known cure, but various treatments can help manage its symptoms.

I'm sorry for any confusion, but "Horseshoe Crabs" are not a medical term or a medical condition. They are actually marine arthropods that have survived for over 450 million years, and are found primarily in the Atlantic Ocean, especially around the Gulf of Mexico and the eastern seaboard of the United States.

However, Horseshoe Crabs do have a significant role in the medical field, particularly in the production of Limulus amebocyte lysate (LAL), which is used to test for bacterial endotoxins in medical equipment and injectable drugs. The blood of Horseshoe Crabs contains amebocytes, which can clot in response to endotoxins found in gram-negative bacteria. This reaction forms a gel-like clot that can be detected and measured, providing a crucial tool for ensuring the sterility of medical products.

So while "Horseshoe Crabs" are not a medical term per se, they do have an important place in medical research and production.

'Acari' is the scientific name for a group of small arthropods that includes ticks and mites. These tiny creatures are characterized by having eight legs, lack antennae or wings, and have a hard exoskeleton. They belong to the class Arachnida, which also includes spiders and scorpions.

Ticks are external parasites that feed on the blood of mammals, birds, and reptiles, and can transmit various diseases such as Lyme disease, Rocky Mountain spotted fever, and tick-borne encephalitis. Mites, on the other hand, have diverse habits and lifestyles, with some being parasitic, predacious, or free-living. Some mites are pests that can cause skin irritation and allergies in humans and animals.

Overall, Acari is a significant group of organisms with medical and veterinary importance due to their ability to transmit diseases and cause other health problems.

I'm sorry for any confusion, but "Caragana" is not a medical term or concept. It is actually the name of a genus of flowering plants in the legume family, also known as Siberian peashrubs. These plants are often used in landscaping and erosion control due to their hardiness and ability to fix nitrogen in the soil. If you have any questions related to medicine or health, I would be happy to try to help answer them for you!

'Daphnia' is not a medical term, but rather it refers to a group of small, planktonic crustaceans commonly known as water fleas. They are widely distributed in various freshwater environments and play an important role in the aquatic food chain as they serve as a food source for many larger animals such as fish.

While Daphnia may not have a direct medical definition, there has been some research into their potential use in biomedical applications due to their sensitivity to environmental changes. For instance, they have been used as indicators of water quality and toxicity levels in ecotoxicological studies. However, it is important to note that Daphnia itself is not a medical term or concept.

In the context of medicine and biology, symbiosis is a type of close and long-term biological interaction between two different biological organisms. Generally, one organism, called the symbiont, lives inside or on another organism, called the host. This interaction can be mutually beneficial (mutualistic), harmful to the host organism (parasitic), or have no effect on either organism (commensal).

Examples of mutualistic symbiotic relationships in humans include the bacteria that live in our gut and help us digest food, as well as the algae that live inside corals and provide them with nutrients. Parasitic symbioses, on the other hand, involve organisms like viruses or parasitic worms that live inside a host and cause harm to it.

It's worth noting that while the term "symbiosis" is often used in popular culture to refer to any close relationship between two organisms, in scientific contexts it has a more specific meaning related to long-term biological interactions.

... is an elastomeric protein found in many insects and other arthropods. It provides soft rubber-elasticity to ... elastin: a vertebrate protein Deming T (2012). Peptide-Based Materials. Springer Publishing. Neurath H (1966). The Proteins ... and tri-tyrosine cross-links between proteins. Resilin is a disordered protein; however its segments may take on secondary ... Like other elastomeric proteins, the degree of cross linking in resilin is low, which ensures the low stiffness and high ...
Duman, John G (March 2001). "Antifreeze and Ice Nucleator Proteins in Terrestrial Arthropods". Annual Review of Physiology. 63 ... Pfister, Thomas D.; Storey, Kenneth B. (May 2006). "Responses of protein phosphatases and cAMP-dependent protein kinase in a ... Freeze-tolerant insects are known to produce ice nucleating proteins. The regulated production of ice nucleating proteins ... These antifreeze proteins are thought to stabilize SCPs by binding directly to the surface structures of the ice crystals ...
2010). "Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". Nature. 463 (7284): ... were arthropods, but later study shows that their affinities of being origin of arthropods are not reliable. Small arthropods ... of the evolution from Anomalocaris to true arthropods and could be at the evolutionary root of true arthropods. Arthropods ... Although arthropods are the most numerous phylum on Earth, and thousands of arthropod species are venomous, they inflict ...
... s are a family defensin proteins found in mollusks, insects, and arachnids. These cysteine-rich antibacterial ... Peripheral membrane proteins, Insect immunity, All stub articles, Membrane protein stubs). ... Arthropod defensin peptides range in length from 38 to 51 amino acids. There are six conserved cysteines all involved in ... Furthermore, it was also shown that the N-terminal helix region in arthropod or insect defensins is also not required for ...
The arthropod 'Brain Tumor' protein (Brat; Q8MQJ9) is one such growth regulator that contains a 6-bladed NHL-repeat beta- ... The NHL repeat has also been used to design a family of fully symmetrical 6-blade beta-propeller proteins called "Pizza". These ... The NHL repeats are also found in serine/threonine protein kinase (STPK) in diverse range of pathogenic bacteria. These STPK ... Kano S, Miyajima N, Fukuda S, Hatakeyama S (July 2008). "Tripartite motif protein 32 facilitates cell growth and migration via ...
A Rubberlike Protein in Arthropod Cuticle". Advances in Insect Physiology Volume 2. Advances in Insect Physiology. Vol. 2. p. 1 ... Weis-Fogh then went to the University of Cambridge in England for four years, where he discovered a rubbery protein, resilin, ...
Menassa, R.; Zhu, H.; Karatzas, C. N.; Lazaris, A.; Richman, A.; Brandle, J. (2004). "Spider dragline silk proteins in ... This article describes the roles played by arthropods in human culture. The arthropods are a phylum of animals with jointed ... Arthropods appear in folklore, in mythology, and in religion. Since Insects in mythology and in religion are covered elsewhere ... Arthropods play many roles in human culture, the social behaviour and norms in human societies transmitted through social ...
These proteins are involved in the process of sclerotization of arthropod cuticle, in wound healing, and humoral immune defense ... Also, larval storage proteins in many insects appear to be derived from hemocyanins. The arthropod hemocyanin superfamily is ... Beintema JJ, Stam WT, Hazes B, Smidt MP (May 1994). "Evolution of arthropod hemocyanins and insect storage proteins (hexamerins ... Terwilliger NB, Dangott L, Ryan M (March 1999). "Cryptocyanin, a crustacean molting protein: evolutionary link with arthropod ...
... proteins, and lipids). The primary oxygen transporter molecule is hemocyanin. Arthropod hemolymph contains high levels of free ... Proteins present in the hemolymph vary in quantity during the course of development. These proteins are classified by their ... and those involved in the immune responses of arthropods. Some hemolymphic proteins incorporate carbohydrates and lipids into ... Arthropod hormones are present, most notably the juvenile hormone. Trehalose can be present and sometimes in great amounts ...
... eats arthropod prey, animal proteins, carbohydrates and protein. They will eat caterpillars, flies, ants, ... They use the scavenged animal protein from both vertebrates and arthropods such as: caterpillars, flies, alate ants, termites, ... and hunt arthropod prey or scavenge animal proteins." Water is used for the following processes: nest cooling, construction, ... Canadian Journal of Arthropod Identification Web. 21 Sept. 2014. . West-Eberhard, M.J. (1969). The social biology of polistine ...
"Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". Nature. 463 (7284): 1079-1083. ... crown-group arthropods). Their positions within arthropod stem-group are indicated by numerous arthropod groundplans and ... via dinocaridids to arthropods, would lead to an arthropod body plan. Aysheaia's surface ornamentation, if homologous with ... were originally thought to be associated within the arthropod stem-group based on its apparently arthropod-like (arthropodized ...
"Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". Nature. 463 (7284): 1079-1083. ... Crustaceans portal Arthropods portal Data related to Anostraca at Wikispecies Media related to Anostraca at Wikimedia Commons ( ... ISBN 978-0-471-35837-4. D. R. Khanna (2004). "Segmentation in arthropods". Biology of Arthropoda. Discovery Publishing House. ... Fortey, R.; Thomas, H. (2012). Arthropod Relationships. Berlin: Springer Science & Business Media. pp. 104-105. Minelli, A. ( ...
"Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". Nature. 463 (7284): 1079-1083. ... Inferences from expressed sequence tags and comparisons with neural cladistics". Arthropod Structure & Development. 40 (3): 289 ...
"Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". Nature. 463 (7284): 1079-1083. ...
"Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". Nature. 463 (7284): 1079-1083. ... Giribet, Gonzalo; Edgecombe, Gregory D. (2012-01-07). "Reevaluating the Arthropod Tree of Life". Annual Review of Entomology. ...
"Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". Nature. 463 (7284): 1079-1083. ... 2010-03-01). "Arthropod phylogeny revisited, with a focus on crustacean relationships". Arthropod Structure & Development. 39 ( ... Although most crustaceans are small, their morphology varies greatly and includes both the largest arthropod in the world - the ... They are distinguished from other groups of arthropods, such as insects, myriapods and chelicerates, by the possession of ...
"Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". Nature. 463 (7284): 1079-1083. ... Mandibulata, is one of two major clades of living arthropods alongside Chelicerata. It comprises the extant groups Myriapoda ( ... Molecular phylogenetic studies suggest that the living arthropods are related as shown in the cladogram below. Crustaceans do ... "A congruent solution to arthropod phylogeny: phylogenomics, microRNAs and morphology support monophyletic Mandibulata". ...
"Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". Nature. 463 (7284): 1079-83. ... the anterior part of the arthropod brain and found in the first head segment that in all other arthropods give rise to the eyes ... One theory is that this reflects how a common ancestor of all arthropods evolved; starting its life as a small animal with a ... This is disputed, however, as genetic evidence suggests they may be a sister group to all other living arthropods. Sea spiders ...
"Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". Nature. 463 (7284): 1079-1083. ...
Jeffrey W. Shultz & Jerome C. Regier (22 May 2000). "Phylogenetic analysis of arthropods using two nuclear protein-encoding ... "Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". Nature. 463 (7284): 1079-1083. ... used the signal in the 62 protein-coding genes assembled by Regier et al. in 2010 to improve the knowledge of the internal ... Gonzalo Giribet & Carles Ribera (June 2000). "A review of arthropod phylogeny: new data based on ribosomal DNA sequences and ...
"Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". Nature. 463 (7284): 1079-1083. ... v t e (Articles with short description, Short description matches Wikidata, Arthropod taxonomy, All stub articles, Arthropod ... The Myriochelata or Paradoxopoda, is a proposed grouping of arthropods comprising the Myriapoda (including millipedes and ... and protein-coding genes. More recent molecular studies, however, favour grouping the myriapods with the Pancrustacea, rather ...
"Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". Nature. 463 (7284): 1079-1083. ... Like all arthropods, arachnids have an exoskeleton, and they also have an internal structure of cartilage-like tissue, called ... Extant (living) arthropods are a monophyletic group and are divided into three main clades: chelicerates (including arachnids ... Arthropods portal Arachnophobia Endangered spiders Glossary of spider terms List of extinct arachnids Cracraft, Joel & Donoghue ...
"Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". Nature. 463 (7284): 1079-1083. ... Zrzavý, J., Hypša, V. & Vlášková, M. (1997). Arthropod phylogeny: taxonomic congruence, total evidence and conditional ...
J.G. Duman (2001). "Antifreeze and ice nucleator proteins in terrestrial arthropods". Annual Review of Physiology. 63: 327-357 ... The winter flounder is one such fish that utilizes these proteins to survive in its frigid environment. This is not strictly ... There are many techniques that aid in maintaining a liquid state, such as the production of antifreeze proteins, or AFPs, which ... There are many other mechanisms that aid in maintaining a liquid state, such as the production of antifreeze proteins, which ...
Duman JG (2001). "Antifreeze and ice nucleator proteins in terrestrial arthropods". Annual Review of Physiology. 63: 327-57. ... Antifreeze proteins (AFPs) or ice structuring proteins refer to a class of polypeptides produced by certain animals, plants, ... They are alpha helical proteins rich in glutamate and glutamine. This protein is approximately 12KDa in size and consists of a ... They are labeled "ISP" or ice structuring protein on the label, instead of AFP or antifreeze protein. One recent, successful ...
Duman JG (2001). "Antifreeze and ice nucleator proteins in terrestrial arthropods". Annu. Rev. Physiol. 63: 327-57. doi:10.1146 ... It is a type V antifreeze protein with a molecular weight of 12.8 kDa; this type of AFP is noted for its hyperactivity. R. ... The TxTxTxT domains are irregularly spaced within the protein and have been shown to be conserved from the TxT binding motif of ... These data suggest that RiAFP is a well-folded β-helical protein, having six β-strand regions consisting of 13-amino acids ( ...
Its protein source is small arthropods such as insects. It is normally solitary and can be found at varying heights above the ... and feeds on insects and other small insect-like arthropods as a source of protein. It seems to prefer epiphytes. It is a ...
... "dachshund encodes a nuclear protein required for normal eye and leg development in Drosophila". Development. 120 (12): 3473- ... but before the radiation of arthropods. This view is supported if a stem-arthropod position is supported for compound-eye ... What is the ancestral visual organ in arthropods?". Arthropod Structure & Development. 35 (4): 231-245. doi:10.1016/j.asd. ... And while many arthropods today have three, four, or even six, the lack of a common pathway suggests that a pair is the most ...
The wasps acquire protein from hunting several groups of arthropods. Foraging wasps crush their caught prey and carry the ... Foraging for animal proteins is the most complex task for worker wasps. In order to successfully hunt prey, wasps require prey ... P. exigua are small wasps that find nourishment from nectar and prey on arthropods. Their nests are disc-shaped and hang from ... Wasps were reported to share this food with other adults and offer the protein in a macerated form to larvae. The water ...
Protein is acquired through the general predation of land arthropods. A. vicina are known to prey most heavily on insects of ... They are predators of land arthropods, consuming both insects and spiders alike. Recent sperm morphology studies have shown ... Colonies forage for water, plant tissue, protein and carbohydrates. ...
Member viruses infect arthropods, plants, protozoans, and vertebrates. It is the only order in the class Ellioviricetes. The ... The S segment encodes the nucleocapsid protein (N). Most bunyaviruses have a negative-sense L and M segment. The S segment of ... The ambisense S segment codes for the viral nucleoprotein (N) in the negative sense and a nonstructural protein (NSs) in the ... In addition, there is a group of bunyaviruses whose replication is restricted to arthropods and is known as insect-specific ...
... arthropods and lancelets. Arthropod defensins are the best-characterised defensins from invertebrates (especially those from ... Cationic Antimicrobial Proteins,' 'Neutrophil peptides,' 'Gamma thionins' amongst others. Proteins called 'defensins' are not ... Fobis-Loisy I, Ivanov R, Gaude T (2012). "The S-LOCUS CYSTEINE-RICH PROTEIN (SCR): A Small Peptide with A High Impact on the ... There appear to have been multiple evolutionary recruitments of defensins to be toxin proteins used in the venoms of animals; ...
The female Aedes aegypti mosquito is a vector of several arthropod-borne viruses, such as Mayaro, Dengue, Chikungunya, Yellow ... of characterization of proteins might be useful for the identification of proteins expressed by arthropod-borne viruses ... of characterization of proteins might be useful for the identification of proteins expressed by arthropod-borne viruses ... proteins from the UniProt database. Results: In total, 1736 proteins were identified from the 559228 "reviewed" proteins from ...
... oxygen free radicals and several proteins ..."; 2) the CD-ROM included has technical problems-under BugCoach, none of the 4 ... and in its emphasis on arthropods as the cause of disease. A specific arthropod is described in each section, which begins with ... Physicians Guide to Arthropods of Medical Importance, 5th Edition On This Page ... The concept of symptomatic treatment at the local level may no longer be sufficient to treat certain major types of arthropod- ...
Database: selection of arth proteins 185,036 sequences; 84,944,009 total letters blastp -db $2 -query $1 -evalue 1E-6 -num_ ... BlastP was run against all predicted proteins from a selection of genomes (Draft and Complete). ... a new generation of protein database search programs, Nucleic Acids Res. 25:3389-3402. Reference for composition-based ... Improving the accuracy of PSI-BLAST protein database searches with composition-based statistics and other refinements, Nucleic ...
2010). "Arthropod relationships revealed by phylogenomic analysis of nuclear protein-coding sequences". Nature. 463 (7284): ... were arthropods, but later study shows that their affinities of being origin of arthropods are not reliable. Small arthropods ... of the evolution from Anomalocaris to true arthropods and could be at the evolutionary root of true arthropods. Arthropods ... Although arthropods are the most numerous phylum on Earth, and thousands of arthropod species are venomous, they inflict ...
Reconstructing the phylogeny of 21 completely sequenced arthropod species based on their motor proteins Motor proteins have ... One of the key proteins of adaptive gene control in Authors: Bettina Zeis, Tobias Lamkemeyer, Rüdiger J Paul, Frank Nunes, ... Chronic exposure to different temperatures (10 and 20°C) mainly affects protein metabolism Temperature affects essentially ... A recent comparative genomic analysis tentatively identified roughly 40 orthologous groups of C2H2 Zinc-finger proteins that ...
Pitfall traps are commonly used for capturing ground-dwelling arthropods, particularly beetles, ants, and spiders. The ... Using protein-glutaminase treatment to make veggie-burgers more moist. 1 hour ago ... Using protein-glutaminase treatment to make veggie-burgers more moist. 1 hour ago ... Individual arthropod movement was modeled as correlated random walks, with multiple traps positioned across a sampling area, ...
... to produce a 6xHis-tagged fusion protein, which was then used to generate a polyclonal antibody. Western blot results revealed ... Storage protein 2 (SP2) not only is an important source of energy for the growth and development of silkworm but also has ... T. Burmester, "Origin and evolution of arthropod hemocyanins and related proteins," Journal of Comparative Physiology B, vol. ... total protein of BmN cells infected by wtbacmid; 2, 2′: total protein of the BmN cells infected by vBm-sp2; 3: protein that ...
hematophagous arthropods, primarily mosquitoes. One of them, Aedes aegypti, is the primary vector of several. widely spread ... A novel vaccine against mosquito-borne Zika virus based on mosquito salivary gland protein AgBR1. Award Information ... protein secreted in A. aegypti saliva, AgBR1, in which passively and actively immunized immunocompromised. murine models were ... will develop a vaccine candidate based on the A. aegypti salivary protein AgBR1 to control Zika virus infection. and other ...
Orbiviruses are distinguished from the orthoreoviruses by their protein structure and arthropod transmission cycles. [1] The ... Orbiviruses are distinguished from the orthoreoviruses by their protein structure and arthropod transmission cycles. [1] The ... Viral proteins are synthesized 2 to 14 days after the infection and self-assemble within the cytoplasm. New virions are ... Viral proteins are synthesized 2-14 days after the infection and self-assemble within the cytoplasm. New virions are released ...
Major egg yolk proteins from egg-laying animals such as non-mammalian VERTEBRATES; ARTHROPODS; and others. They are high- ...
Using this method revealed that the same proteins are not unique to insects; they show up in the brains of other arthropods, ... "When you look across the arthropods as a group, its everywhere.". In addition to insects and crustaceans, other arthropods ... "We know of several proteins that are necessary for the establishment of learning and memory in fruit flies," Strausfeld said, " ... About 480 million years ago, the arthropod family tree split, with one lineage producing the arachnids and another the ...
muscle, troponin, troponin-I, troponin-T, myofibrillar protein, isoform, innervation, neuromuscular junction, synapse, crayfish ... Myofibrillar proteins (4-6 μg) were separated in 10 % SDS-polyacrylamide gels (Laemmli, 1970). Proteins in gels were either ... Only two proteins meet these criteria: P75 for fast-twitch and troponin-T1 (TnT1) for slow-tonic (S2); neither P75 nor TnT1 is ... Silver-stained polyacrylamide gel showing myofibrillar proteins (MHC, myosin heavy chain; P, paramyosin; P75, 75 kDa protein; ...
b.1.18.3: Arthropod hemocyanin, C-terminal domain [81283] (1 protein). *. b.1.18.4: Class II viral fusion proteins C-terminal ... b.1.18.9: Transglutaminase N-terminal domain [81289] (1 protein). *. b.1.18.10: Filamin repeat (rod domain) [81290] (2 proteins ... b.1.18.5: Cytomegalovirus protein US2 [81285] (1 protein). *. b.1.18.6: Molybdenum-containing oxidoreductases-like dimerisation ... b.1.18.17: Copper resistance protein C (CopC, PcoC) [81969] (1 protein). ...
Its protein source is small arthropods such as insects. It is normally solitary and can be found at varying heights above the ...
... staining techniques for the characterisation and discrimination of insects versus marine arthropods processed animal proteins. ... Method for the isolation of processed animal proteins from insects in feed and their identification by microscopy. Veys, P. & ... Protocol for the isolation of processed animal proteins from insects in feed and their identification by microscopy. Veys, P ... Survey of animal by-products in feedingstuffs before the reintroduction of processed animal proteins in aquafeed. Lecrenier, M. ...
Insects are arthropods, and several other arthropods - most notably shrimp - can cause severe allergic reactions. One of the ... a single kilogram of feed yields 12 times more edible cricket protein than beef protein. Some species of insects are drought ... The arthropod advocates know they have some convincing to do, but they are optimistic. In consumer surveys, many people report ... The protein sequence of tropomyosin is similar in insects and crustaceans, and people with shellfish allergies may also react ...
Both are arthropods.. A locust is nutritionally highly comparable to beef, containing high levels of proteins, the right fatty ...
Plants, spices, enzymes, egg proteins Farmers. Animal derived allergens, arthropods, moulds, plants, fungicides ... Several of the proteins in NRL have been purified and sequenced.. Immediate hypersensitivity reactions caused by NRL are ... b) Sensitisation to proteins relates to their proteolytic actions. (c) Occupational asthma in grain and flour workers is ... Beside flour proteins, enzymes (that is, α-amylase), other fungal species (Aspergillus,Alternaria,Cladosporium), and storage ...
Expression of engrailed proteins in arthropods, annelids, and chordates. Cell. 58: 955-68. PMID 2570637 DOI: 10.1016/0092-8674( ... Slit proteins bind Robo receptors and have an evolutionarily conserved role in repulsive axon guidance. Cell. 96: 795-806. PMID ... Granderath S, Stollewerk A, Greig S, Goodman CS, OKane CJ, Klämbt C. loco encodes an RGS protein required for Drosophila glial ... slit: an extracellular protein necessary for development of midline glia and commissural axon pathways contains both EGF and ...
2004). As arthropods with a tracheal system, insects generally do not use respiratory proteins to transport oxygen (Nigam et al ... Only some arthropods use hemocyanin for oxygen transport in the hemolymph (blood). Among these arthropods are members of the ... protein complex with 12 protein subunits) (Nigam et al. 1997). Each subunit weighs about 75,000 daltons (75 kDa) and has two ... Among the arthropods known to use hemocyanin are crayfish, lobsters, crabs, horseshoe crabs, and some centipedes and millipedes ...
Markl, J. (1986) Evolution and Function of Structurally Diverse Subunits in the Respiratory Protein Hemocyanin from Arthropods ... Through electrophoresis it was observed that Gr-VHDL has three proteins: a predominant band of 68 kDa and two others of 99 and ... Lowry, O.H., Rosenbrough, N.J., Farr, A.L. and Randall, R. (1951) Protein Measurement with the Folin Phenol Reagent. Journal of ... In this sense Gr-VHDL fraction has 98.6% of hemolymphatic proteins, and 89.3% of lipids presents in the hemolymph. Both ...
Editorial: Plant-Arthropod Interactions: Effectors and Elicitors of Arthropods and Their Associated Microbes. Frontiers in ... Induction of defensive proteins in Solanaceae by salivary glucose oxidase of Helicoverpa zea caterpillars and consequences for ... Changes in arthropod community but not plant quality benefit a specialist herbivore on plants under reduced water availability ... Oral cues are not enough: induction of defensive proteins in Nicotiana tabacum upon feeding by caterpillars. Planta, Lin, Po An ...
Subtropical and tropical regions register a high proportion of Arthropod-borne viral infections. According to the WHO, dengue ... Pancreatic Stone Protein Testing Market - The increasing cases of chronic diseases due to pancreatic stone formation expected ... Arthropod-borne viral infections testing market, a new study by Future Market Insights, opines on the application of Arthropod- ... Arthropod-Borne Viral Infections Testing Market is rising at a CAGR of 5.6% from 2022 to 2029. February 24th, 2022 Future ...
Some, such as pyrethrins and nicotine, disrupt the nervous system of arthropods, causing paralysis and then death. Others block ... Still others bind to and inactivate proteins that are essential for basic life functions, such as energy production, metabolism ... For instance, some bacteria have genes that code for proteins that are toxic to certain caterpillars. Scientists inserted these ... These may be plant chemicals that are toxic to herbivores or proteins that kill or deter them. ...
However, arthropod venoms are underexploited, although they are a rich source of new molecules. A recent in vitro screening of ... These venoms are a mixture of biologically active molecules, such as proteins and non-protein substances, with specific targets ... However, arthropod venoms are underexploited, although they are a rich source of new molecules. A recent in vitro screening of ... Effect of Phoneutria nigriventer venom on the expression of junctional protein and P-gp efflux pump function in the blood-brain ...
Figure 2. Representation of a human hemoglobin protein molecule. Hemoglobin is an iron-containing oxygen-transport protein ... God has designed hemoglobin in a wide range of His creatures, both invertebrates (arthropods, mollusks, annelids, and ... Hemoglobin is an iron-containing respiratory protein in red blood cells that binds oxygen and then transports and releases it ... When a gene duplication occurs, it negatively affects its own expression (the production of protein or regulatory RNA), not to ...
The frogs sister taxon, the P. burmeisteri group, regularly eats arthropods (de Paula Lima et al. 2010). Pyllomedusa sauvagii ... This provides a supplementary source of vitamin D and proteins (Castanho et al. 2001). During rain, P. sauvagii drinks rain ...
Hummingbirds for example, need nectar and regular doses of protein from mosquitoes, spiders, thrips, gnats and other arthropods ...
... aiming to trace the origin of IBPs in insects and other arthropods. Our study shows that the last common ancestor of insects ( ... This suggests an evolutionary history of insulator binding proteins in insects different to that previously thought. Moreover, ... Expression of homeotic genes, in turn, is partially regulated by insulator binding proteins (IBPs). While only a few enhancer ... study demonstrates the versatility of the 1KITE transcriptomic data for comparative analyses in insects and other arthropods. ...
... for the identification of blood meal source and the detection of insecticide resistance in Anopheles and to other arthropods ... Protein profiling based on MALDI-TOF MS spectra has provided potential biomarkers of pathogen-infected arthropods17, ... including metabolic proteins, stress-related molecular chaperones, and cuticular proteins. If field-validated, this age-grading ... Müller, P. et al. Identification of cryptic Anopheles mosquito species by molecular protein profiling. PLoS ONE 8, e57486 (2013 ...

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