Aspartate Ammonia-Lyase: An enzyme that catalyzes the conversion of aspartic acid to ammonia and fumaric acid in plants and some microorganisms. EC 4.3.1.1.Phenylalanine Ammonia-Lyase: An enzyme that catalyzes the deamination of PHENYLALANINE to form trans-cinnamate and ammonia.Ammonia: A colorless alkaline gas. It is formed in the body during decomposition of organic materials during a large number of metabolically important reactions. Note that the aqueous form of ammonia is referred to as AMMONIUM HYDROXIDE.Anabaena variabilis: A species of ANABAENA that can form SPORES called akinetes.Ammonia-Lyases: Enzymes that catalyze the formation of a carbon-carbon double bond by the elimination of AMMONIA. EC 4.3.1.Ethanolamine Ammonia-Lyase: An enzyme that catalyzes the deamination of ethanolamine to acetaldehyde. EC 4.3.1.7.p-Fluorophenylalanine: 3-(p-Fluorophenyl)-alanine.Aspartate Aminotransferases: Enzymes of the transferase class that catalyze the conversion of L-aspartate and 2-ketoglutarate to oxaloacetate and L-glutamate. EC 2.6.1.1.Rhodotorula: A red yeast-like mitosporic fungal genus generally regarded as nonpathogenic. It is cultured from numerous sources in human patients.Basidiomycota: A phylum of fungi that produce their sexual spores (basidiospores) on the outside of the basidium. It includes forms commonly known as mushrooms, boletes, puffballs, earthstars, stinkhorns, bird's-nest fungi, jelly fungi, bracket or shelf fungi, and rust and smut fungi.Aspartate Carbamoyltransferase: An enzyme that catalyzes the conversion of carbamoyl phosphate and L-aspartate to yield orthophosphate and N-carbamoyl-L-aspartate. (From Enzyme Nomenclature, 1992) EC 2.1.3.2.Salicylic Acid: A compound obtained from the bark of the white willow and wintergreen leaves. It has bacteriostatic, fungicidal, and keratolytic actions.PhenylpropionatesATP Citrate (pro-S)-Lyase: An enzyme that, in the presence of ATP and COENZYME A, catalyzes the cleavage of citrate to yield acetyl CoA, oxaloacetate, ADP, and ORTHOPHOSPHATE. This reaction represents an important step in fatty acid biosynthesis. This enzyme was formerly listed as EC 4.1.3.8.Aspartic Acid: One of the non-essential amino acids commonly occurring in the L-form. It is found in animals and plants, especially in sugar cane and sugar beets. It may be a neurotransmitter.Plant Leaves: Expanded structures, usually green, of vascular plants, characteristically consisting of a bladelike expansion attached to a stem, and functioning as the principal organ of photosynthesis and transpiration. (American Heritage Dictionary, 2d ed)Plant Diseases: Diseases of plants.Histidine Ammonia-Lyase: An enzyme that catalyzes the first step of histidine catabolism, forming UROCANIC ACID and AMMONIA from HISTIDINE. Deficiency of this enzyme is associated with elevated levels of serum histidine and is called histidinemia (AMINO ACID METABOLISM, INBORN ERRORS).Antibodies: Immunoglobulin molecules having a specific amino acid sequence by virtue of which they interact only with the ANTIGEN (or a very similar shape) that induced their synthesis in cells of the lymphoid series (especially PLASMA CELLS).Nitrosomonas europaea: The type species of the genus NITROSOMONAS, a gram-negative chemolithotroph that oxidizes ammonia to nitrite. It is found in soil, sewage, freshwater, and on building walls, and especially in polluted areas where air contains high levels of nitrogen compounds.Nitrobacter: A genus of gram-negative, rod-shaped bacteria that oxidizes nitrites to nitrates. Its organisms occur in aerobic environments where organic matter is being mineralized, including soil, fresh water, and sea water.Nitrosomonas: A genus of gram-negative, ellipsoidal or rod-shaped bacteria whose major source of energy and reducing power is from the oxidation of ammonia to nitrite. Its species occur in soils, oceans, lakes, rivers, and sewage disposal systems.Melissa: A plant genus of the family LAMIACEAE. The common names of beebalm or lemonbalm are also used for MONARDA.Life Support Systems: Systems that provide all or most of the items necessary for maintaining life and health. Provisions are made for the supplying of oxygen, food, water, temperature and pressure control, disposition of carbon dioxide and body waste. The milieu may be a spacecraft, a submarine, or the surface of the moon. In medical care, usually under hospital conditions, LIFE SUPPORT CARE is available. (From Webster's New Collegiate Dictionary)Ecological Systems, Closed: Systems that provide for the maintenance of life in an isolated living chamber through reutilization of the material available, in particular, by means of a cycle wherein exhaled carbon dioxide, urine, and other waste matter are converted chemically or by photosynthesis into oxygen, water, and food. (NASA Thesaurus, 1988)Search Engine: Software used to locate data or information stored in machine-readable form locally or at a distance such as an INTERNET site.Complement C3: A glycoprotein that is central in both the classical and the alternative pathway of COMPLEMENT ACTIVATION. C3 can be cleaved into COMPLEMENT C3A and COMPLEMENT C3B, spontaneously at low level or by C3 CONVERTASE at high level. The smaller fragment C3a is an ANAPHYLATOXIN and mediator of local inflammatory process. The larger fragment C3b binds with C3 convertase to form C5 convertase.Information Storage and Retrieval: Organized activities related to the storage, location, search, and retrieval of information.Semiconductors: Materials that have a limited and usually variable electrical conductivity. They are particularly useful for the production of solid-state electronic devices.Aspergillus oryzae: An imperfect fungus present on most agricultural seeds and often responsible for the spoilage of seeds in bulk storage. It is also used in the production of fermented food or drink, especially in Japan.Internet: A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.PubMed: A bibliographic database that includes MEDLINE as its primary subset. It is produced by the National Center for Biotechnology Information (NCBI), part of the NATIONAL LIBRARY OF MEDICINE. PubMed, which is searchable through NLM's Web site, also includes access to additional citations to selected life sciences journals not in MEDLINE, and links to other resources such as the full-text of articles at participating publishers' Web sites, NCBI's molecular biology databases, and PubMed Central.Salmonella typhimurium: A serotype of Salmonella enterica that is a frequent agent of Salmonella gastroenteritis in humans. It also causes PARATYPHOID FEVER.Salmonella enterica: A subgenus of Salmonella containing several medically important serotypes. The habitat for the majority of strains is warm-blooded animals.Salmonella Infections, Animal: Infections in animals with bacteria of the genus SALMONELLA.Salmonella Infections: Infections with bacteria of the genus SALMONELLA.Virulence: The degree of pathogenicity within a group or species of microorganisms or viruses as indicated by case fatality rates and/or the ability of the organism to invade the tissues of the host. The pathogenic capacity of an organism is determined by its VIRULENCE FACTORS.Molecular Sequence Data: 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.Base Sequence: The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.Dictyostelium: A genus of protozoa, formerly also considered a fungus. Its natural habitat is decaying forest leaves, where it feeds on bacteria. D. discoideum is the best-known species and is widely used in biomedical research.Biogenic Amines: A group of naturally occurring amines derived by enzymatic decarboxylation of the natural amino acids. Many have powerful physiological effects (e.g., histamine, serotonin, epinephrine, tyramine). Those derived from aromatic amino acids, and also their synthetic analogs (e.g., amphetamine), are of use in pharmacology.Bacteria: One of the three domains of life (the others being Eukarya and ARCHAEA), also called Eubacteria. They are unicellular prokaryotic microorganisms which generally possess rigid cell walls, multiply by cell division, and exhibit three principal forms: round or coccal, rodlike or bacillary, and spiral or spirochetal. Bacteria can be classified by their response to OXYGEN: aerobic, anaerobic, or facultatively anaerobic; by the mode by which they obtain their energy: chemotrophy (via chemical reaction) or PHOTOTROPHY (via light reaction); for chemotrophs by their source of chemical energy: CHEMOLITHOTROPHY (from inorganic compounds) or chemoorganotrophy (from organic compounds); and by their source for CARBON; NITROGEN; etc.; HETEROTROPHY (from organic sources) or AUTOTROPHY (from CARBON DIOXIDE). They can also be classified by whether or not they stain (based on the structure of their CELL WALLS) with CRYSTAL VIOLET dye: gram-negative or gram-positive.Anti-Bacterial Agents: Substances that reduce the growth or reproduction of BACTERIA.Drug Resistance, Bacterial: The ability of bacteria to resist or to become tolerant to chemotherapeutic agents, antimicrobial agents, or antibiotics. This resistance may be acquired through gene mutation or foreign DNA in transmissible plasmids (R FACTORS).Dictionaries, MedicalDictionaries as Topic: Lists of words, usually in alphabetical order, giving information about form, pronunciation, etymology, grammar, and meaning.Dictionaries, ChemicalTerminology as Topic: The terms, expressions, designations, or symbols used in a particular science, discipline, or specialized subject area.Campylobacter jejuni: A species of bacteria that resemble small tightly coiled spirals. Its organisms are known to cause abortion in sheep and fever and enteritis in man and may be associated with enteric diseases of calves, lambs, and other animals.Campylobacter: A genus of bacteria found in the reproductive organs, intestinal tract, and oral cavity of animals and man. Some species are pathogenic.Campylobacter Infections: Infections with bacteria of the genus CAMPYLOBACTER.Campylobacter fetus: A species of bacteria present in man and many kinds of animals and birds, often causing infertility and/or abortion.Campylobacter coli: A species of gram-negative, rod-shaped bacteria isolated from the intestinal tract of swine, poultry, and man. It may be pathogenic.Mucins: High molecular weight mucoproteins that protect the surface of EPITHELIAL CELLS by providing a barrier to particulate matter and microorganisms. Membrane-anchored mucins may have additional roles concerned with protein interactions at the cell surface.Culture Media: Any liquid or solid preparation made specifically for the growth, storage, or transport of microorganisms or other types of cells. The variety of media that exist allow for the culturing of specific microorganisms and cell types, such as differential media, selective media, test media, and defined media. Solid media consist of liquid media that have been solidified with an agent such as AGAR or GELATIN.

Cloning and over-expression of thermostable Bacillus sp. YM55-1 aspartase and site-directed mutagenesis for probing a catalytic residue. (1/36)

A thermostable aspartase gene (aspB) from Bacillus sp. YM55-1 was cloned and the gene sequenced. The aspB gene (1407 bp ORF) encodes a protein with a molecular mass of 51 627 Da, consisting of 468 amino-acid residues. An amino-acid sequence comparison revealed that Bacillus YM55-1 aspartase shared 71% homology with Bacillus subtilis aspartase and 49% with Escherichia coli and Pseudomonas fluorescens aspartases. The E. coli TK237/pUCASPB strain, which was obtained by transforming E. coli TK237 (aspartase-null strain) with a vector plasmid (pUCASPB) containing the cloned aspB gene, produced a large amount of the enzyme corresponding to > 10% of the total soluble protein. The over-expressed recombinant enzyme (native molecular mass: 200 kDa) was purified effectively and rapidly using heat treatment and affinity chromatography. In order to probe the catalytic residues of this enzyme, two conserved amino-acid residues, Lys183 and His134, were individually mutated to alanine. Although the tertiary structure of each mutant was estimated to be the same as that of wild-type aspartase in CD and fluorescence measurements, the Lys183Ala mutant lost its activity completely, whereas His134Ala retained full activity. This finding suggests that Lys183 may be involved in the catalytic activity of this thermostable Bacillus YM55-1 aspartase.  (+info)

A monomeric L-aspartase obtained by in vitro selection. (2/36)

By mimicking the partial spatial structure of the dimer of the l-aspartase subunit, the central ten-helix bundle, and an "active site" between the cleft of domain 1 (D1) and domain 3 (D3) from different subunits, we designed l-aspartase variants, in which D1D2 and D2D3 were ligated with a random hexapeptide loop. As expected, we obtained the variant with the highest activity (relative activity is 21.3% of the native enzyme, named as drAsp017) by in vitro selection. The molecular weight of this variant, obtained from size-exclusion column chromatography, is about 81 kDa, which indicates that it is indeed a monomer, whereas native l-aspartase is a tetramer. The activity-reversibility of drAsp017 (10(-7) m) was 80% after incubation for 30 min at 50 degrees C, while native enzyme only retained about 17% under the same conditions. Reactivation of drAsp017 denatured in 4 m guanidine HCl was independent of protein concentration at up to 20 x 10(-8) m at 25 degrees C, whereas the protein concentration of native enzyme strongly affected its reactivation under the above conditions. The sensitivity of drAsp017 (10(-7) m) to effective factors in the fumarate-amination reaction compared with native enzyme was also determined. Half-saturating concentrations of the activator l-aspartate and Mg2+ for drAsp017 (0.8 and 0.5 mm, respectively) are much higher than that of the native enzyme (0.10 and 0.15 mm, respectively). The data show that a monomeric l-aspartase is obtained by in vitro selection. Thus, the conversion of oligomeric proteins into their functional monomers could have important applications.  (+info)

Thermostable aspartase from a marine psychrophile, Cytophaga sp. KUC-1: molecular characterization and primary structure. (3/36)

We found that a psychrophilic bacterium isolated from Antarctic seawater, Cytophaga sp. KUC-1, abundantly produces aspartase [EC4.3.1.1], and the enzyme was purified to homogeneity. The molecular weight of the enzyme was estimated to be 192,000, and that of the subunit was determined to be 51,000: the enzyme is a homotetramer. L-Aspartate was the exclusive substrate. The optimum pH in the absence and presence of magnesium ions was determined to be pH 7.5 and 8.5, respectively. The enzyme was activated cooperatively by the presence of L-aspartate and by magnesium ions at neutral and alkaline pHs. In the deamination reaction, the K(m) value for L-aspartate was 1.09 mM at pH 7.0, and the S(1/2) value was 2.13 mM at pH 8.5. The V(max) value were 99.2 U/mg at pH 7.0 and 326 U/mg at pH 8.5. In the amination reaction, the K(m) values for fumarate and ammonium were 0.797 and 25.2 mM, respectively, and V(max) was 604 U/mg. The optimum temperature of the enzyme was 55 degrees C. The enzyme showed higher pH and thermal stabilities than that from mesophile: the enzyme was stable in the pH range of 4.5-10.5, and about 80% of its activity remained after incubation at 50 degrees C for 60 min. The gene encoding the enzyme was cloned into Escherichia coli, and its nucleotides were sequenced. The gene consisted of an open reading frame of 1,410-bp encoding a protein of 469 amino acid residues. The amino acid sequence of the enzyme showed a high degree of identity to those of other aspartases, although these enzymes show different thermostabilities.  (+info)

Possible physiological roles of aspartase, NAD- and NADP-requiring glutamate dehydrogenases of Pseudomonas fluorescens. (4/36)

The levels of aspartase, NADP- and NAD-requiring glutamate dehydrogenases (GDHs) in Pseudomonas fluorescens grown under various nutritional conditions were determined. NADP-GDH showed the highest value on glucose-ammonium sulfate medium and markedly lower values on amino-acid and casamino-acids media, while the reverse was found for the NAD-GDH, as in the case of other microorganisms with two GDHs. Aspartase did not show a marked variation between the media examined. Glucose nutritionally induced NADP-GDH but suppressed NAD-GDH; and it had no effect on aspartase, which was slightly induced by casamino acids. Transfer of the cells grown on glucose-ammonium sulfate medium to casamino-acids medium clearly increased the levels of NAD-GDH and aspartase, while addition of chloramphenicol to the media abolished the increases, suggesting that the increases were due to de novo synthesis of the enzyme proteins. These results indicate that the aspartase of this microorganism has a different function from those in others, including Escherichia coli.  (+info)

Enzymes involved in anaerobic respiration appear to play a role in Actinobacillus pleuropneumoniae virulence. (5/36)

Actinobacillus pleuropneumoniae, the etiological agent of porcine pleuropneumonia, is able to survive on respiratory epithelia, in tonsils, and in the anaerobic environment of encapsulated sequesters. It was previously demonstrated that a deletion of the anaerobic dimethyl sulfoxide reductase gene (dmsA) results in attenuation in acute disease (N. Baltes, S. Kyaw, I. Hennig-Pauka, and G. F. Gerlach, Infect. Immun. 71:6784-6792, 2003). In the present study, using two-dimensional polyacrylamide gel electrophoresis and quadrupole time-of-flight mass spectrometry, we identified an aspartate ammonia-lyase (AspA) which is upregulated upon induction with bronchoalveolar lavage fluid (BALF). This enzyme is involved in the production of fumarate, an alternative electron acceptor under anaerobic conditions. The coding gene (aspA) was cloned and shown to be present in all A. pleuropneumoniae serotype reference strains. The transcriptional start point was identified downstream of a putative FNR binding motif, and BALF-dependent activation of aspA was confirmed by construction of an isogenic A. pleuropneumoniae mutant carrying a chromosomal aspA::luxAB transcriptional fusion. Two aspA deletion mutants, A. pleuropneumoniae DeltaaspA and A. pleuropneumoniae DeltaaspADeltadmsA, were constructed, both showing reduced growth under anaerobic conditions in vitro. Pigs challenged with either of the two mutants in an aerosol infection model showed a lower lung lesion score than that of the A. pleuropneumoniae wild-type (wt) controls. Pigs challenged with A. pleuropneumoniae DeltaaspADeltadmsA had a significantly lower clinical score, and this mutant was rarely reisolated from unaltered lung tissue; in contrast, A. pleuropneumoniae DeltaaspA and the A. pleuropneumoniae wt were consistently reisolated in high numbers. These results suggest that enzymes involved in anaerobic respiration are necessary for the pathogen's ability to persist on respiratory tract epithelium and play an important role in A. pleuropneumoniae pathogenesis.  (+info)

Deletion of the anaerobic regulator HlyX causes reduced colonization and persistence of Actinobacillus pleuropneumoniae in the porcine respiratory tract. (6/36)

Actinobacillus pleuropneumoniae, the etiological agent of porcine pleuropneumonia, is able to persist on respiratory epithelia, in tonsils, and in the anaerobic environment of encapsulated lung sequesters. We have demonstrated previously that putative HlyX-regulated genes, coding for dimethyl sulfoxide (DMSO) reductase and aspartate ammonia lyase, are upregulated during infection and that deletions in these genes result in attenuation of the organism. The study presented here investigates the role of HlyX, the fumarate nitrate reductase regulator (FNR) homologue of A. pleuropneumoniae. By constructing an isogenic A. pleuropneumoniae hlyX mutant, the HlyX protein is shown to be responsible for upregulated expression of both DMSO reductase and aspartate ammonia lyase (AspA) under anaerobic conditions. In a challenge experiment the A. pleuropneumoniae hlyX mutant is shown to be highly attenuated, unable to persist in healthy lung epithelium and tonsils, and impaired in survival inside sequestered lung tissue. Further, using an A. pleuropneumoniae strain carrying the luxAB genes as transcriptional fusion to aspA on the chromosome, the airway antioxidant glutathione was identified as one factor potentially responsible for inducing HlyX-dependent gene expression of A. pleuropneumoniae in epithelial lining fluid.  (+info)

Cloning, nucleotide sequence, and expression of the Bacillus subtilis ans operon, which codes for L-asparaginase and L-aspartase. (7/36)

L-Aspartase was purified from Bacillus subtilis, its N-terminal amino acid sequence was determined to construct a probe for the aspartase gene, and the gene (termed ansB) was cloned and sequenced. A second gene (termed ansA) was found upstream of the ansB gene and coded for L-asparaginase. These two genes were in an operon designated the ans operon, which is 80% cotransformed with the previously mapped aspH1 mutation at 215 degrees. Primer extension analysis of in vivo ans mRNA revealed two transcription start sites, depending on the growth medium. In wild-type cells in log-phase growth in 2x YT medium (tryptone-yeast extract rich medium), the ans transcript began at -67 relative to the translation start site, while cells in log-phase growth or sporulating (t1 to t4) in 2x SG medium (glucose nutrient broth-based moderately rich medium) had an ans transcript which began at -73. The level of the -67 transcript was greatly increased in an aspH mutant grown in 2x YT medium; the -67 transcript also predominated when this mutant was grown in 2x SG medium, although the -73 transcript was also present. In vitro transcription of the ans operon by RNA polymerase from log-phase cells grown in 2x YT medium and log-phase or sporulating cells grown in 2x SG medium yielded only the -67 transcript. Depending on the growth medium, the levels of asparaginase and aspartase were from 2- to 40-fold higher in an aspH mutant than in wild-type cells, and evidence was obtained indicating that the gene defined by the aspH1 mutation codes for a trans-acting transcriptional regulatory factor. In wild-type cells grown in 2x SG medium, the levels of both aspartase and asparaginase decreased significantly by t0 of sporulation but then showed a small increase, which was mirrored by changes in the level of beta-galactosidase from an ansB-lacZ fusion. The increase in the activities of ans operon enzymes between t2 and t5 of sporulation was found primarily in the forespore, and the great majority of the increased was found in the mature spore. However, throughout sporulation the only ans transcript detected was the -73 form, and no sporulation-specific RNA polymerase tested yielded a -73 transcript in vitro.  (+info)

A missense mutation causes aspartase deficiency in Yersinia pestis. (8/36)

 (+info)

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The nucleotide sequences of two segments of DNA (2250 and 2921 base-pairs) containing the functionally related fumarase (fumC) and aspartase (aspA) genes of Escherichia coli K12 were determined. The fumC structural gene comprises 1398 base-pairs (466 codons, excluding the initiation codon), and it encodes a polypeptide of Mr 50353 that resembles the fumarases of Bacillus subtilis 168 (citG-gene product), rat liver and pig heart. The fumC gene starts 140 base-pairs downstream of the structurally-unrelated fumA gene, but there is no evidence that both genes form part of the same operon. The aspA structural gene comprises 1431 base-pairs (477 codons excluding the initiation codon), and it encodes a polypeptide of Mr 52190, similar to that predicted from maxicell studies and for the enzyme from E. coli W. Remarkable homologies were found between the primary structures of the fumarase (fumC and citG) and aspartase (aspA) genes and their products, suggesting close structural and evolutionary ...
Cloning and nucleotide sequence of the Bacillus subtilis ansR gene, which encodes a repressor of the ans operon coding for L-asparaginase and L-aspartase.: Prev
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is definitely a leading cause of fatal sepsis and meningitis worldwide. severe sepsis. The organism asymptomatically colonizes the nasopharyngeal mucosa especially in young adults. In susceptible individuals hyper‐invasive strains of meningococci may invade the nasopharyngeal submucosa and consequently enter the bloodstream (Stephens 2009). Diverse bacterial factors involved in adhesion invasion dissemination and safety of the organism from your innate human immune system are indicated by fimbriae (Kukkonen et?al. 1998) aspartase (Sj?str?m et?al. 1997) and protein E (Barthel et?al. 2012b). Sequestered plg contributes to processes such as ECM degradation fibrinolysis degradation of immune effectors and adherence therefore enhancing bacterial colonization MK-0812 of and dissemination within the sponsor (Bhattacharya et?al. 2012). We previously reported that FBA is definitely a nonessential surface‐localized protein in was shown to be an essential enzyme and partly localized to the bacterial ...
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mouse Asph protein: 26-kDa protein isolated from cardiac junctional sarcoplasmic reticulum; hydroxylates ASP or ASN residues in EGF domains of some proteins; RefSeq NM_023066
Surrey data 50% of the population is Vitamin D deficient 150,000 potential cases Exponential rise in ordering of Vitamin D testing Cost per test - £2.90 ASPH
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C Aspa Scorb was formulated as a mineral transporter based on the results of studies by several researchers, principally Hans Neiper, M.D., West Germany.
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Se vaaiga i le aufaigaluega a le Pulega o le Eletise ma le Suavai (ASPA) sa gafa ma le fausiaina o le galuega tele i Faleasao, Manua, o le faaaogaina lea o le malosi o le la e maua mai ai le eletise, faatasi ai ma taitai o le atunuu e aofia ai le Faipule i le laumua i Uosigitone ia Aumua Amata, faapea ai le Taitaifono o le Komiti Faafoe a le ASPA, Fonoti Perelini. [ata AF ...
L-ASPARTIC ACID MAGNESIUM SALT 18962-61-3 NMR spectrum, L-ASPARTIC ACID MAGNESIUM SALT H-NMR spectral analysis, L-ASPARTIC ACID MAGNESIUM SALT C-NMR spectral analysis ect.
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LANSING, Mich., Oct. 23, 2012 - Neogen Corporation has introduced an innovative preventative maintenance and service program designed to make it even easier to use Neogens test kits and lab instruments. Neogens new NeoCare program will help ensure uptime and trouble-free testing for Neogens ANSR™ pathogen detection system and Soleris® spoilage detection system. NeoCare service will include LabLive, a feature that provides a direct lab-to-lab audio and visual connection between Neogens technical support experts and customers.
The report focuses on United States major leading industry players providing information such as company profiles, product picture and specification, capacity, production, price, cost, revenue and contact information. Upstream raw materials and equipment and downstream demand analysis is also carried out. The L-aspartic acid industry development trends and marketing channels are analyzed. Finally the feasibility of new investment projects are assessed and overall research conclusions offered ...
Any information or recommendations made for use of Sellers materials do not affect in any way Buyers obligation to examine and/or test the Sellers goods with regard to their suitability for Buyers purposes especially with regard to consumer use. No information given by the Seller is to be construed in any way as a guarantee regarding characteristics or duration of use, unless such information has been explicitly given as a guarantee. All information from Gee Lawson is for business use only and not for consumer use. Gee Lawson are a division of LEHVOSS (UK) Ltd. Information on this website pertaining to health claims as defined in regulation EC 1924/2006 is not for consumer use unless specifically mentioned ...
Dietary Supplement. True potency 5 billion CFU. Once daily. For healthy digestive flora. True Identity: acidophilus & rhamnosus. True Release targeted delivery. For ages 12 & up. Exclusively backed by True Guarantee. True Guarantee probiotic. True Potency: Ensures 5 billion CFUs per capsule for the entire shelf life. True Identity: Ensures only the strains listed on the label are found in the product. True Release: Enteric-coating ensures stomach acid survival and intestinal delivery. 2 strain formula designed to meet the needs of ages 12 & up. Suitable for vegetarians. www.naturesway.com. Product of Canada.. ...
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Synonyms Zinc dihydrogen di-L-aspartate; L-Aspartic acid zinc salt; Zinc (3S)-3-amino-4-hydroxy-4-oxobutanoate. Molecular Formula: 2(C4H6NO4).Zn. Molecular Weight: 329.60. CAS Registry Number: 36393-20-1. EINECS: 253-012-5. ...
Adenine 10 mg/L; L-Arginine HCl 50 mg/L; L-Aspartic Acid 80 mg/L; L-Histidine HCl 20 mg/L; L-Isoleucine 50 mg/L; L-Lysine HCl 50 mg/L; L-Methionine 20 mg/L; L-Phenylalanine 50 mg/L; L-Threonine 100 mg/L; L-Tyrosine 50 mg/L; L-Valine 140 mg/L ...
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New series of Fe(II) complexes and Schiff base amino acids have been designed and synthesized from the bioactive ligands by condensation of 5-bromo-2-hydroxybenzaldehyde and α-amino acids (l-alanine (ala), l-phenylalanine (phala), l-aspartic acid (aspa), l-histidine (his) and l-arginine (arg)). Elemental analyses, infrared, ultraviolet-visible spectra, as well as conductivity and magnetic susceptibility measurements are used to elucidate the structure of the newly ... Read more. ...
©SHRM 2012 About SHRM Founded as the American Society for Personnel Administration (ASPA) in ASPA became the Society for Human Resource Management in 1989 to reflect the organizations broadening scope. Since SHRMs 50th anniversary in 1998, the membership has grown from 90,000 to more than 258,000 today. Members represent all functional areas, industries and titles. Membership is individual. Discounted student membership is available for individuals enrolled in a minimum of 6 credit hours per semester in HR coursework. Active members who may be transitioning between jobs and are up for renewal may qualify for a one-year free membership. There are more than 575 chapters nationally and over 6000 volunteers participating in SHRM activities. 3
Under mild conditions, the reaction of alkylidene, arylidene, and heteroarylidene malonates with tosylhydrazone salts in the presence of catalytic amount of Rh-2(OAc)(4) and triphenylarsine affords trans-2,3- disubstituted cyclopropane 1,1-dicarboxylic esters in high yields and high diastereoselectivities. (C) 2008 Elsevier Ltd. All rights reserved ...
Name L-Aspartate Magnesium. Synonyms Magnesium dihydrogen di-L-aspartate; L-Aspartic acid magnesium salt; Magnesium (3S)-3-amino-4-hydroxy-4-oxobutanoate. Molecular Formula: 2(C4H6NO4).Mg. Molecular Weight: 288.49. CAS Registry Number: 288.49. EINECS: 218-191-6. ...
0.05% w/v L-Citrulline, 0.05% w/v Glycine, 0.05% w/v L-(-)-Threonine, 0.05% w/v L-(+)-Lysine, 0.05% w/v L-Alanine, 0.05% w/v L-Arginine, 0.05% w/v L-Asparagine monohydrate, 0.05% w/v L-Aspartic acid, 0.05% w/v L-Glutamic acid, 0.05% w/v L-Glutamine, 0.05% w/v L-Histidine, 0.05% w/v L-Isoleucine, 0.05% w/v L-Leucine, 0.05% w/v L-Methionine, 0.05% w/v L-Phenylalanine, 0.05% w/v L-Proline, 0.05% w/v L-Serine, 0.05% w/v L-Tryptophan, 0.05% w/v L-Tyrosine, 0.05% w/v L-Valine, 0.02 M HEPES sodium pH ...
0.05% w/v Glycine, 0.05% w/v L-(-)-Threonine, 0.05% w/v L-(+)-Lysine, 0.05% w/v L-Alanine, 0.05% w/v L-Arginine, 0.05% w/v L-Asparagine, 0.05% w/v L-Aspartic acid, 0.05% w/v L-Glutamic acid, 0.05% w/v L-Glutamine, 0.05% w/v L-Histidine, 0.05% w/v L-Isoleucine, 0.05% w/v L-Leucine, 0.05% w/v L-Methionine, 0.05% w/v L-Phenylalanine, 0.05% w/v L-Proline, 0.05% w/v L-Serine, 0.05% w/v L-Tryptophan, 0.05% w/v L-Tyrosine, 0.05% w/v L-Valine, 0.02 M HEPES sodium pH ...
Bodyflex AM contains Cold Processed Whey Protein Isolate, L-Lysine, L-Glutamine, L-Threonine, L-Proline, L-Aspartic Acid, a Multi-Vitamin and many more!
The noroviruses (former called Norwalk virus), members of the Caliciviridaefamily, are pathogens with a world wide distribution. Due to the induction of short-term immunity, the human population is very susceptible to infections with these viruses. Outbreaks of norovirus gastroenteritis are typically caused by food and drinking water contaminated with faeces or sewage ...
Canavan disease (CD) is a rare fatal childhood neurological autosomal recessive genetic disease caused by mutations in the ASPA gene, which lead to catalytic deficiency of the ASPA enzyme, which catalyzes the hydrolysis of N-acetyl-L-aspartate (NAA) into aspartate and acetate. CD occurs frequently among Ashkenazi Jewish population, however it has been reported in many other ethnic groups with significantly lower frequency. Here, we report on two Egyptian patients diagnosed with CD, the first patient harbors five missense mutations (c.427 A , G; p. I143V, c.502C , T; p. R168C, c.530 T , C; p. I177T, c.557 T , C; p. V186D c.548C , T; p. P183L) and a silent mutation (c.693 C , T; p. Y231Y). The second patient was found to be homozygous for two missense mutations (c.427 A , G; p. I143V and c.557 T , A; p. V186D). Furthermore, molecular modeling of the novel mutation p. P183L provides an instructive explanation of the mutational impact on the protein structure that can affect the function of the ...
This record was replaced or removed. The sequence YP_006173076 is 100% identical to WP_000012618.1 over its full length. Be aware that a NCBI nonredundant RefSeq protein (WP_) can be annotated on large numbers of bacterial genomes that encode that identical protein.. Old YP_006173076.1 New WP_000012618.1 Identical proteins Re-annotation project. ...
Magnesium L- aspartate is a source of magnesium, combined as an chelate with L-aspartic acid. Find this and more dietary supplements at PureBulk.
Magnesium Potassium Aspartate is comprised of Magnesium and Potassium complexes formed from L-Aspartic Acid. Chelates of these elements have been formulated with Taurine to help support healthy heart, muscle and nerve functions. Taurine is an amino acid which can function as a neurotransmitter and neuromodulator.
Anesthesia Services, P.A. (ASPA), is a large group practice located in northern Delaware, affiliated with the Christiana Care Health System (CCHS). Our staff includes Anesthesiologists and Certified Registered Nurse Anesthetist (CRNAs).
Anesthesia Services, P.A. (ASPA), is a large group practice located in northern Delaware, affiliated with the Christiana Care Health System (CCHS). Our staff includes Anesthesiologists and Certified Registered Nurse Anesthetist (CRNAs).
AAAS, AARS, AARS2, AASS, ABAT, ABCA5, ABCA7, ABCB7, ABCC8, ABCC9, ABCD1, ABCD3, ACAD9, ACADM, ACADS, ACADSB, ACMSD, ACO2, ACOT7, ACOX1, ACSF3, ACSL4, ACTB, ACTG1, ACTL6B, ACVR1, ACVRL1, ACY1, ADAM22, ADAR, ADAT3, ADCK3, ADCK4, ADD3, ADGRG1, ADK, ADNP, ADRA2B, ADSL, AFF2, AFG3L2, AGA, AGGF1, AGK, AGTR2, AHI1, AHSG, AIFM1, AIMP1, AIMP2, AKT1, AKT2, AKT3, ALAD, ALDH18A1, ALDH1B1, ALDH3A2, ALDH4A1, ALDH5A1, ALDH7A1, ALDOB, ALG1, ALG11, ALG12, ALG13, ALG2, ALG3, ALG6, ALG8, ALG9, ALMS1, ALPL, ALX4, AMACR, AMER1, AMPD2, AMT, ANK2, ANK3, ANKH, ANKLE2, ANKRD11, ANO10, ANO3, AP1S2, AP3B2, AP3D1, AP4B1, AP4E1, AP4M1, AP4S1, APC2, APOA1BP, APOPT1, APTX, AQP2, ARCN1, ARFGEF2, ARG1, ARHGAP31, ARHGEF15, ARHGEF6, ARHGEF9, ARID1A, ARID1B, ARID2, ARL13B, ARMC9, ARNT2, ARSA, ARV1, ARVCF, ARX, ASAH1, ASCL1, ASL, ASNS, ASPA, ASPM, ASS1, ASTN1, ASTN2, ASXL1, ASXL2, ASXL3, ATAD1, ATAD3A, ATIC, ATN1, ATP13A2, ATP1A2, ATP1A3, ATP2A2, ATP2B3, ATP5A1, ATP5E, ATP6AP1, ATP6AP2, ATP6V0A2, ATP6V0C, ATP6V1A, ATP6V1B2, ATP7A, ...
In a clinical characterization of ten paediatric patients with SARS-CoV-2 infection in China, none of whom required respiratory support or intensive care and all of whom lacked signs of pneumonia, eight tested positive on rectal swabs, even after nasopharyngeal testing was negative. The details were published as a Brief Communication in Nature Medicine. The patients, whose ages ranged from 2 months to 15 years, initially tested positive after being screened by nasopharyngeal swab real-time reverse transcription PCR (RT-PCR). Next, the researchers conducted a series of nasopharyngeal and rectal swabs to investigate the pattern of viral excretion. Eight patients had real-time RT-PCR-positive rectal swabs. In addition, these eight patients had persistently positive rectal swabs even after their nasopharyngeal tests were negative. Four patients were discharged after two consecutive negative rectal swabs, but the rectal swabs of two of these patients later became positive again, despite ...
and also feline leukaemia virus- This is a serious and fatal disease, which we are unable to treat, so the vaccination is the only way to protect them. It is possible for your cat to have a vaccination that does not include feline leukaemia if you prefer. If your cat has not previously had the feline leukaemia vaccine and you would like them to have it, they will require two vaccines three weeks apart to start the course ...
The Midewiwin (also spelled Midewin and Medewiwin) or the Grand Medicine Society is a secretive religion of some of the indigenous peoples of the Maritimes, New England and Great Lakes regions in North America. Its practitioners are called Midew, and the practices of Midewiwin are referred to as Mide. Occasionally, male Midew are called Midewinini, which is sometimes translated into English as "medicine man". The preverb mide can be translated as "mystery," "mysterious," "spiritual," "sanctimonious," "sacred," or "ceremonial", depending on the context of its use. The derived verb midewi, thus means "be in/of mide." The derived noun midewiwin then means "state of being in midewi." Often mide is translated into English as "medicine" (thus the term midewinini "medicine-man") though mide conveys the idea of a spiritual medicine, opposed to mashkiki that conveys the idea of a physical medicine. A practitioner of Midewiwin is called a midew, which can also be rendered as mideo... both forms of the ...
Aspartate ammonia-lyase, EC 4.3.1.1 (aspartase), which catalyzes the reversible conversion of aspartate to fumarate and ammonia ... A number of enzymes, belonging to the lyase class, for which fumarate is a substrate, have been shown to share a short ... This reaction is analogous to that catalyzed by fumarase, except that ammonia rather than water is involved in the trans- ... Delta-crystallin shares around 90% sequence identity with arginosuccinate lyase, showing that it is an example of a 'hijacked' ...
In enzymology, an aspartate ammonia-lyase (EC 4.3.1.1) is an enzyme that catalyzes the chemical reaction L-aspartate ⇌ {\ ... and L-aspartate ammonia-lyase. This enzyme participates in alanine and aspartate metabolism and nitrogen metabolism. As of late ... The systematic name of this enzyme class is L-aspartate ammonia-lyase (fumarate-forming). Other names in common use include ... This enzyme belongs to the family of lyases, specifically ammonia lyases, which cleave carbon-nitrogen bonds. ...
The systematic name of this enzyme class is threo-3-hydroxy-L-aspartate ammonia-lyase (oxaloacetate-forming). Other names in ... This enzyme belongs to the family of lyases, specifically ammonia lyases, which cleave carbon-nitrogen bonds. ... and threo-3-hydroxy-L-aspartate ammonia-lyase. N, Yamada H, Shimizu S (1999). "Purification and characterization of a novel ... In enzymology, a threo-3-hydroxyaspartate ammonia-lyase (EC 4.3.1.16) is an enzyme that catalyzes the chemical reaction threo-3 ...
... erythro-3-hydroxy-Ls-aspartate hydro-lyase (deaminating), and erythro-3-hydroxy-Ls-aspartate ammonia-lyase. It employs one ... The systematic name of this enzyme class is erythro-3-hydroxy-Ls-aspartate ammonia-lyase (oxaloacetate-forming). Other names in ... This enzyme belongs to the family of lyases, specifically ammonia lyases, which cleave carbon-nitrogen bonds. ... In enzymology, an erythro-3-hydroxyaspartate ammonia-lyase (EC 4.3.1.20) is an enzyme that catalyzes the chemical reaction ...
CS1 maint: Multiple names: authors list (link) Threo-3-hydroxy-D-aspartate ammonia-lyase at the US National Library of Medicine ... Threo-3-hydroxy-D-aspartate ammonia-lyase (EC 4.3.1.27, D-threo-3-hydroxyaspartate dehydratase) is an enzyme with systematic ... name threo-3-hydroxy-D-aspartate ammonia-lyase (oxaloacetate-forming). This enzyme catalyses the following chemical reaction ... threo-3-hydroxy-D-aspartate ⇌ {\displaystyle \rightleftharpoons } oxaloacetate + NH3 This enzyme is a pyridoxal-phosphate ...
Most aquatic organisms, or ammonotelic organisms, excrete ammonia without converting it. Ammonia is toxic, but upon excretion ... One of the nitrogens in the urea cycle is obtained from the transamination of oxaloacetate to aspartate. The fumarate that is ... 1 carbamoyl phosphate synthetase I OTC Ornithine transcarbamoylase ASS argininosuccinate synthetase ASL argininosuccinate lyase ... The conversion from ammonia to urea happens in five main steps. The first is needed for ammonia to enter the cycle and the ...
Deprotonation of the lysine residue causes ammonia to leave, thus completing the catalytic cycle. Cystathionine gamma lyase ... and methionine gamma lyase. It is also a member of the broader aspartate aminotransferase family. Like many other PLP-dependent ... and ammonia. Pyridoxal phosphate is a prosthetic group of this enzyme. Cystathionine gamma-lyase also catalyses the following ... Cystathionine gamma-lyase (CTH or CSE; also cystathionase) is an enzyme which breaks down cystathionine into cysteine, α- ...
Ammonia is toxic in part because it affects the nervous system. There is biochemical evidence that shows rises in ammonia can ... While ASS catalyzes the formation of argininosuccinate from citrulline and aspartate, ASL breaks the newly formed ... ASL is a key enzyme in the conversion of ammonia to urea through the urea cycle. Ammonia builds to toxic levels, resulting in ... Ammonia (NH3) is a toxic substance for many aerobic organisms and must be excreted. Some aquatic organisms release the toxin ...
... isochorismate lyase EC 4.3.1.1: aspartate ammonia-lyase EC 4.3.1.2: methylaspartate ammonia-lyase EC 4.3.1.3: histidine ammonia ... threo-3-hydroxyaspartate ammonia-lyase EC 4.3.1.17: L-serine ammonia-lyase EC 4.3.1.18: D-serine ammonia-lyase EC 4.3.1.19: ... phenylalanine/tyrosine ammonia-lyase) EC 4.3.1.6: b-alanyl-CoA ammonia-lyase EC 4.3.1.7: ethanolamine ammonia-lyase EC 4.3.1.8 ... tyrosine ammonia-lyase EC 4.3.1.24: phenylalanine ammonia-lyase EC 4.3.1.25: phenylalanine/tyrosine ammonia-lyase EC 4.3.1.26: ...
... ammonia-lyases MeSH D08.811.520.232.400.200 --- aspartate ammonia-lyase MeSH D08.811.520.232.400.350 --- ethanolamine ammonia- ... lyase MeSH D08.811.520.232.400.500 --- histidine ammonia-lyase MeSH D08.811.520.232.400.600 --- l-serine dehydratase MeSH ... aspartate-ammonia ligase MeSH D08.811.464.259.200.600 --- glutamate-ammonia ligase MeSH D08.811.464.259.300 --- ... tyrosine phenol-lyase MeSH D08.811.520.232.300 --- amidine-lyases MeSH D08.811.520.232.300.200 --- adenylosuccinate lyase MeSH ...
Ammonia is toxic, particularly to the nervous system. An accumulation of ammonia during the first few days of life leads to ... Attack by aspartate is the rate-limiting step of the reaction. This step produces free AMP and L-argininosuccinate. ... Argininosuccinate synthetase and argininosuccinate lyase recycle citrulline, a byproduct of nitric oxide production, into ... As a result, nitrogen (in the form of ammonia) and other byproducts of the urea cycle (such as citrulline) build up in the ...
... aspartate-ammonia ligase EC 6.3.1.2: glutamate-ammonia ligase EC 6.3.1.3: Now EC 6.3.4.13 EC 6.3.1.4: aspartate-ammonia ligase ... lyase) ligase EC 6.2.1.23: dicarboxylate-CoA ligase EC 6.2.1.24: phytanate-CoA ligase EC 6.2.1.25: benzoate-CoA ligase EC 6.2. ... aspartate-tRNA ligase EC 6.1.1.13: D-alanine-poly(phosphoribitol) ligase EC 6.1.1.14: glycine-tRNA ligase EC 6.1.1.15: proline- ... D-aspartate ligase EC 6.3.1.13: L-cysteine:1D-myo-inositol 2-amino-2-deoxy-alpha-D-glucopyranoside ligase EC 6.3.1.14: ...
Oxaloacetic acid + Glutamate ↔ α-Ketoglutarate + Aspartate ( Catalysed by Aspartate Aminotransferase) 2) Synthesis of ammonia ( ... Aspartate + IMP + GTP → Adenylosuccinate + GDP + Pi Finally, Adenylosuccinate is cleaved by the enzyme adenylosuccinate lyase ... OAA either enters into TCA cycle or converts into aspartate in the mitochondria. Aspartate can re-enter purine nucleotide cycle ... The Purine Nucleotide Cycle is a metabolic pathway in which fumarate is generated from aspartate in order to increase the ...
... and ammonia. Found in plants, bacteria, and yeast, cystathionine beta-lyase is an essential part of the methionine biosynthesis ... and methionine gamma lyase. Additionally, these structures exhibit a type I fold and belong to the aspartate aminotransferase ( ... The enzyme also belongs to the family of lyases, specifically the class of carbon-sulfur lyases. The systematic name of this ... Cystathionine beta-lyase (EC 4.4.1.8), also commonly referred to as CBL or β-cystathionase, is an enzyme that primarily ...
... or L-serine ammonia lyase (SDH) is in the β-family of pyridoxal phosphate-dependent (PLP) enzymes. SDH is ... The overall B6 enzymes diverged into four independent evolutionary lines: α family (i.e. aspartate aminotransferase), β family ... Serine Dehydratase is also known as: L-serine ammonia-lyase Serine deaminase L-hydroxyaminoacid dehydratase L-serine deaminase ... The β enzymes are all lyases and catalyze reactions where Cα and Cβ participate. Overall, in the PLP-dependent enzymes, the PLP ...
EC 4.3.1 Phenylalanine ammonia-lyase (EC 4.3.1.24) Category:EC 4.4.1 Cystathionine gamma-lyase Cystathionine beta-lyase ... EC 2.6.1 Alanine transaminase EC 2.6.1.2 Aspartate transaminase EC 2.6.1.1 Category:EC 2.7.2 Butyrate kinase (EC 2.7.2.7) ...
Next, aspartate carbamoyltransferase catalyzes a condensation reaction between aspartate and carbamoyl phosphate to form ... This step is catalyzed by adenylosuccinate lyase. Inosine monophosphate is converted to guanosine monophosphate by the ... and from ammonia and carbon dioxide. The liver is the major organ of de novo synthesis of all four nucleotides. De novo ... This new carbon is modified by the additional of a third NH2 unit, this time transferred from an aspartate residue. Finally, a ...
SAICAR lyase removes the carbon skeleton of the added aspartate, leaving the amino group and forming 5-aminoimidazole-4- ... asparagine synthetase catalyzes the addition of nitrogen from glutamine or soluble ammonia to aspartate to yield asparagine. ... The biosynthesis of aspartate is a one step reaction that is catalyzed by a single enzyme. The enzyme aspartate ... The aspartate family of amino acids includes: threonine, lysine, methionine, isoleucine, and aspartate. Lysine and isoleucine ...
Phenylalanine ammonia lyase for phenylketonuria, Mol Genet Metab 99: 4-9. Somers, Terri (8 February 2005). "Japanese drug giant ... in the chemistry department at Harvard University where he focused on the large allosteric enzyme aspartate ... pegylated Phenylalanine ammonia-lyase) as treatments for mild and classical phenylketonuria (PKU). In 2008 Stevens started ... Structural and biochemical characterization of the therapeutic Anabaena variabilis phenylalanine ammonia lyase J Mol Biol 380: ...
Food portal Medicine portal Aspartame controversy NutraSweet Stevia Phenylalanine ammonia lyase Budavari, Susan, ed. (1989). " ... Aspartic acid (aspartate) is one of the most common amino acids in the typical diet. As with methanol and phenylalanine, intake ... although a small increase in aspartate time-effect scores was noted over the four-hour postabsorptive period, no significant ... resulted with the conclusion that aspartame administration at 50 mg/kg body weight has a small effect upon the milk aspartate ...
... is converted to cinnamic acid by the enzyme phenylalanine ammonia-lyase. The genetic disorder phenylketonuria ( ... "Specific inhibition of N-methyl-D-aspartate receptor function in rat hippocampal neurons by L-phenylalanine at concentrations ... In 1882, Erlenmeyer and Lipp first synthesized phenylalanine from phenylacetaldehyde, hydrogen cyanide, and ammonia. The ...
Aspartic acid is produced by the addition of ammonia to fumarate using a lyase.[22] ... Oxaloacetate/aspartate: lysine, asparagine, methionine, threonine, and isoleucine[edit]. The oxaloacetate/aspartate family of ... Aspartate[edit]. The biosynthesis of aspartate is frequently involves the transamination of oxaloacetate. ... The formation of aspartate kinase (AK), which catalyzes the phosphorylation of aspartate and initiates its conversion into ...
D-aspartate) oxidase EC 1.4.3.16: L-aspartate oxidase EC 1.4.3.17: now *EC 1.3.3.10 EC 1.4.3.18: deleted, not approved EC 1.4. ... ammonia-forming) EC 1.7.2.3: trimethylamine-N-oxide reductase (cytochrome c) EC 1.7.2.4: nitrous-oxide reductase EC 1.7.2.5: ... chlorite O2-lyase EC 1.13.11.50: acetylacetone-cleaving enzyme EC 1.13.11.51: 9-cis-epoxycarotenoid dioxygenase EC 1.13.11.52: ... D-aspartate oxidase EC 1.4.3.2: L-amino-acid oxidase EC 1.4.3.3: D-amino-acid oxidase EC 1.4.3.4: amine oxidase (flavin- ...
Phenylalanine ammonia lyase. *Stevia. References[edit]. *^ Budavari S, ed. (1989). "861. Aspartame". The Merck Index (11th ed ... Aspartate[edit]. Aspartic acid (aspartate) is one of the most common amino acids in the typical diet. As with methanol and ... Beta-aspartame differs from aspartame based upon which carboxyl group of aspartate binds to the nitrogen of phenylalanine. ... although a small increase in aspartate time-effect scores was noted over the four-hour postabsorptive period, no significant ...
Carboxy phosphate reacts with ammonia to give carbamic acid. In turn, carbamic acid reacts with a second ATP to give carbamoyl ... The small subunit contains the glutamine binding site and catalyses the hydrolysis of glutamine to glutamate and ammonia, which ... The carboxylphosphate then reacts with ammonia to form carbamic acid, releasing inorganic phosphate. ... or ammonia (EC 6.3.4.16) and bicarbonate.[1] This enzyme catalyzes the reaction of ATP and bicarbonate to produce carboxy ...
... belongs to the class V group of aspartate aminotransferase superfamily of structurally homologous pyridoxal 5'- ... Histidine ammonia-lyase. *Urocanate hydratase. *Formiminotransferase cyclodeaminase. proline→. *Proline oxidase. *Pyrroline-5- ...
In enzymology, an aspartate ammonia-lyase (EC 4.3.1.1) is an enzyme that catalyzes the chemical reaction L-aspartate ⇌ {\ ... and L-aspartate ammonia-lyase. This enzyme participates in alanine and aspartate metabolism and nitrogen metabolism. As of late ... The systematic name of this enzyme class is L-aspartate ammonia-lyase (fumarate-forming). Other names in common use include ... This enzyme belongs to the family of lyases, specifically ammonia lyases, which cleave carbon-nitrogen bonds. ...
A number of enzymes, belonging to the lyase class, for which fumarate is a substrate have been shown [PMID: 3282546] to share a ... Aspartate ammonia-lyase catalyses the conversion of aspartate to fumarate.. Woods SA, Schwartzbach SD, Guest JR. Two ... GO:0006531 aspartate metabolic process Molecular Function. GO:0008797 aspartate ammonia-lyase activity ...
CS1 maint: Multiple names: authors list (link) Threo-3-hydroxy-D-aspartate ammonia-lyase at the US National Library of Medicine ... Threo-3-hydroxy-D-aspartate ammonia-lyase (EC 4.3.1.27, D-threo-3-hydroxyaspartate dehydratase) is an enzyme with systematic ... name threo-3-hydroxy-D-aspartate ammonia-lyase (oxaloacetate-forming). This enzyme catalyses the following chemical reaction ... threo-3-hydroxy-D-aspartate ⇌ {\displaystyle \rightleftharpoons } oxaloacetate + NH3 This enzyme is a pyridoxal-phosphate ...
Recombinant Protein and Aspartate ammonia-lyase Antibody at MyBioSource. Custom ELISA Kit, Recombinant Protein and Antibody are ... Aspartate ammonia-lyase. Aspartate ammonia-lyase ELISA Kit. Aspartate ammonia-lyase Recombinant. Aspartate ammonia-lyase ... CATALYTIC ACTIVITY: L-aspartate = fumarate + NH(3).. Below are the list of possible Aspartate ammonia-lyase products. If you ... Also known as Aspartate ammonia-lyase (Aspartase).. aspA ELISA Kit. aspA Recombinant. aspA Antibody. Cgl1503 ELISA Kit. Cgl1503 ...
SYN: aspartate ammonia-lyase. aspartate (as-par′tat). A salt or ester of aspartic acid. a. aminotransferase (AST) an enzyme ... aspartate 1-decarboxylase. SYN: glutamate decarboxylase. aspartate 4-decarboxylase. Aspartate β-decarboxylase;a carboxy-lyase ... a. ammonia-lyase a nonmammalian enzyme catalyzing the conversion of l-aspartic acid to fumaric acid, splitting out ammonia. SYN ... a. ligase an acid:ammonia ligase (amide synthetase) forming l-a. and l-glutamate from l-aspartate and l-glutamine, with the ...
Aspartase (L-aspartate ammonia-lyase; EC 4.3.1.1) catalyzes the reversible amination of fumaric acid to produce L-aspartic acid ... The ammonia-oxidizing bacteria (Nitrosomonas europaea) realize the oxidation of ammonia to nitrite, and the nitrite-oxidizing ... The optimum temperature was determined to be 35 °C. The enzyme showed apparent K m and V max values for L-aspartate as 2.01 mM ...
Aspartate ammonia-lyase, EC:4.3.1.1 (aspartase), which catalyses the reversible conversion of aspartate to fumarate and ammonia ... Fumarate lyase, conserved site (IPR020557). Short name: Fumarate_lyase_CS Description. A number of enzymes, belonging to the ... This reaction is analogous to that catalyzed by fumarase, except that ammonia rather than water is involved in the trans- ... P25739: Adenylosuccinase, EC:4.3.2.2 (adenylosuccinate lyase) [PMID: 1574589], which catalyses the eighth step in the de novo ...
Catalytic mechanisms and biocatalytic applications of aspartate and methylaspartate ammonia lyases.. de Villiers M, Puthan ... Engineering methylaspartate ammonia lyase for the asymmetric synthesis of unnatural amino acids. ... Structural Basis for the Catalytic Mechanism of Ethylenediamine- N, N-disuccinic Acid Lyase, a Carbon-Nitrogen Bond-Forming ... resolution and stereoselective synthesis of 3-substituted aspartic acids by using engineered methylaspartate ammonia lyases. ...
aspartate ammonia-lyase Pseudomonas aeruginosa UCBPP-PA14 PA14_71650 aspartate ammonia-lyase 474 100.0 ...
The systematic name of this enzyme class is threo-3-hydroxy-L-aspartate ammonia-lyase (oxaloacetate-forming). Other names in ... This enzyme belongs to the family of lyases, specifically ammonia lyases, which cleave carbon-nitrogen bonds. ... and threo-3-hydroxy-L-aspartate ammonia-lyase. N, Yamada H, Shimizu S (1999). "Purification and characterization of a novel ... In enzymology, a threo-3-hydroxyaspartate ammonia-lyase (EC 4.3.1.16) is an enzyme that catalyzes the chemical reaction threo-3 ...
... erythro-3-hydroxy-Ls-aspartate hydro-lyase (deaminating), and erythro-3-hydroxy-Ls-aspartate ammonia-lyase. It employs one ... The systematic name of this enzyme class is erythro-3-hydroxy-Ls-aspartate ammonia-lyase (oxaloacetate-forming). Other names in ... This enzyme belongs to the family of lyases, specifically ammonia lyases, which cleave carbon-nitrogen bonds. ... In enzymology, an erythro-3-hydroxyaspartate ammonia-lyase (EC 4.3.1.20) is an enzyme that catalyzes the chemical reaction ...
Aspartate ammonia-lyase, EC 4.3.1.1 (aspartase), which catalyzes the reversible conversion of aspartate to fumarate and ammonia ... A number of enzymes, belonging to the lyase class, for which fumarate is a substrate, have been shown to share a short ... This reaction is analogous to that catalyzed by fumarase, except that ammonia rather than water is involved in the trans- ... Delta-crystallin shares around 90% sequence identity with arginosuccinate lyase, showing that it is an example of a hijacked ...
... l-aspartate may also be produced directly from ammonia, as several genes with some similarities to an aspartate-ammonia lyase ... Also, NCFM appears to be capable of assimilating ammonia by conversion into l-glutamate via l-glutamine as intermediates (glnA ... The proposed model for nitrogen assimilation is supported by the presence of amtB (La473), an ammonia permease. Assimilation of ... and aspartate) de novo. From these three amino acids, a series of seven other derivatives could be generated. No de novo or ...
Aspartate ammonia-lyase. aspA 2,100,543-2,100,845. +. Urease subunit gamma. ureA 2,100,861-2,101,229 ... Ammonia measurement assay. Ammonia concentration during incubation of YS11 in YL medium was measured using ammonia assay kit ( ... The increase of ammonia concentration in accordance with pH increase suggested that ammonia production might be a major way for ... Ammonia measurement in YL medium showed an increase in ammonia production, suggesting that strain YS11 could utilize amino ...
Aspartate ammonia lyases (standard format). Order Enquiry AMTESK-100. Aminotransferase (standard format). ...
The two enzymes are aspartate ammonia-lyase and ketol-acid reductoisomerase (also known as acetohydroxy acid isomeroreductase ... The structure of aspartate ammonia-lyase is well underway and we are now interpreting electron density maps. For ketol-acid ...
... both His141 and Glu275 are in adenylosuccinate lyase numbering), acts as the general base in most fumarase class II superfamily ... Catalytic mechanisms and biocatalytic applications of aspartate and methylaspartate ammonia lyases.. *Marianne de Villiers, ...
Biocatalytic enantioselective synthesis of N-substituted aspartic acids by aspartate ammonia lyase. Chemistry-A European ...
Conversion of aspartate into fumarate by the AspA aspartate ammonia lyase produces the volatile compound ammonia (NH3) as a by- ... aspartate aminotransferase), purA (adenylosuccinate synthetase) or aspA (aspartate ammonia lyase) grown in presence of fumarate ... 4C). Moreover, addition of l-aspartate into growth medium resulted in an increased production of ammonia by E. coli, P. ... Decreased ammonia import and assimilation impairs E. coli response to volatile ammonia. A. Metabolic pathways involved in ...
aby:ABAYE1921 aspartate ammonia-lyase (aspartase) K01744 471 100 ( -) 29 0.346 78 -, 1 abz:ABZJ_01929 Aspartate ammonia-lyase( ... abk:LX00_08765 aspartate ammonia-lyase K01744 471 100 ( -) 29 0.346 78 -, 1 abn:AB57_1955 aspartate ammonia-lyase K01744 472 ... abw:BL01_08080 aspartate ammonia-lyase K01744 471 100 ( -) 29 0.346 78 -, 1 abx:ABK1_2221 Aspartate ammonia-lyase K01744 472 ... abc:ACICU_01762 Aspartate ammonia-lyase K01744 471 100 ( -) 29 0.346 78 -, 1 abd:ABTW07_1975 aspartate ammonia-lyase K01744 472 ...
... of fumarate respiration was further supported by the reduced intracellular survival rate of an aspartate ammonia-lyase aspA ... The latter is generated from aspartate by the activity of an aspartate alpha-decarboxylase PanD (Cj0296c) and serves as ... jejuni as it directly fuels the TCA cycle by the aspartate ammonia lyse AspA (Cj0087) catalyzing the deamination to fumarate ( ... that interact with aspartate. The uptake of aspartate is convoluted and involves various transporters: While the periplasmic ...
... a missense point mutation affecting amino acid 363 in the aspartate ammonia lyase (aspA) of Y. pestis likely accounting for the ... Noteworthy among this group are genes of purine and aspartate metabolism as well as genes of the methionine salvage pathway (32 ... aspartate aminotransferase, enolase-phosphatase E1, and 5-methylthioribose kinase, respectively. These differences in metabolic ...
... analysis using a real-time PCR assay targeting the aspartate ammonia lyase gene of L. intracellularis. Purified DNA samples ... KEYWORDS: aspartate aminotransferase, AST, creatine kinase, CK, exertional myopathy, grizzly bear, leghold snare, Ursus arctos ... Nevertheless, comparison of serum aspartate aminotransferase and creatine kinase concentrations and survival between the ... Published values for aspartate aminotransferase (AST) concentration are both higher and lower than observed in this study. In ...
... aspartate ammonia lyase), fxsA (F exclusion of bacteriophage T7), and STM14_5203, encoding a hypothetical protein of unknown ...
... ammonia-lyases explanation free. What is ammonia-lyases? Meaning of ammonia-lyases medical term. What does ammonia-lyases mean? ... Looking for online definition of ammonia-lyases in the Medical Dictionary? ... hence lyases, EC class 4), by rupture of a C-N bond leaving a double bond (EC subgroup 4.3), for example, aspartate ammonia- ... Ammonia-lyases , definition of ammonia-lyases by Medical dictionary https://medical-dictionary.thefreedictionary.com/ammonia- ...
  • Mutants deficient in SdaC (serine transporter) and in AspA (aspartate ammonia lyase) were shown to be deficient in serine and aspartate utilization respectively but both were still able to utilize mucin suggesting that the liberation of serine and asparate from mucin is not important for its use as a carbon source. (surrey.ac.uk)
  • Exogenous l -Glu also caused induction of the aspA gene, most likely due to its conversion to l -Asp by the aspartate transaminase AspC. (microbiologyresearch.org)
  • This enzyme participates in alanine and aspartate metabolism and nitrogen metabolism. (wikipedia.org)
  • Now included with EC 3.4.16.5, carboxypeptidase C EC 3.4.16.4: serine-type D-Ala-D-Ala carboxypeptidase EC 3.4.16.5: carboxypeptidase c EC 3.4.16.6: carboxypeptidase D EC 3.4.17.1: carboxypeptidase A EC 3.4.17.2: carboxypeptidase B EC 3.4.17.3: lysine carboxypeptidase EC 3.4.17.4: Gly-X carboxypeptidase EC 3.4.17.5: Deleted entry: aspartate carboxypeptidase EC 3.4.17.6: alanine carboxypeptidase EC 3.4.17.7: Transferred entry: acylmuramoyl-alanine carboxypeptidase. (wikipedia.org)
  • After obtaining his Ph.D., Stevens accepted a postdoctoral position in 1988 in the lab of Nobel Laureate William N. Lipscomb, Jr. in the chemistry department at Harvard University where he focused on the large allosteric enzyme aspartate carbamoyltransferase. (wikipedia.org)
  • The specific disorders are: N-acetylglutamate synthase (NAGS) deficiency, Carbamyl phosphate synthetase I (CPSI) deficiency, Ornithine transcarbamylase (OTC) deficiency, Argininosuccinate synthetase (AS) deficiency (Citrullinemia), Argininosuccinate lyase (AL) deficiency (Argininosuccinic aciduria), Arginase (ARG) deficiency (Argininemia), Hyperornithinemia, hyperammonemia, homocitrullinuria (HHH) syndrome (or mitochondrial ornithine carrier deficiency-ORNT), and Citrullinemia type II (mitochondrial aspartate/glutamate carrier deficiency-CITR). (pubmedcentralcanada.ca)
  • Among those patients who have AMA antibodies and alkaline phosphatase levels that are less than 1.5 times normal values, primary biliary cirrhosis may be diagnosed with 55% accuracy if patients have aspartate transaminase levels that are more than 5 times the upper limit of normal. (thefreedictionary.com)
  • Citrulline's main function is its ability to remove ammonia and is essential for the excretion of oxidative waste processes. (citrullis.com)
  • Delta-crystallin shares around 90% sequence identity with arginosuccinate lyase, showing that it is an example of a 'hijacked' enzyme - accumulated mutations have, however, rendered the protein enzymatically inactive. (ebi.ac.uk)
  • It is a hyper-ammonia producing bacterium and is able to catabolize amino acids as important carbon and energy sources via Stickland reactions and the development of the specific pathways. (cyberleninka.org)
  • This list contains a list of EC numbers for the fourth group, EC 4, lyases, placed in numerical order as determined by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology. (wikipedia.org)
  • Using Escherichia coli K12 as a model organism, and increased resistance to tetracycline as the phenotypic read-out, we demonstrate that exposure to ammonia generated by the catabolism of l -aspartate increases the level of intracellular polyamines, in turn leading to modifications in membrane permeability to different antibiotics as well as increased resistance to oxidative stress. (wiley.com)
  • Ammonia is toxic, but upon excretion from aquatic species, it is diluted by the water outside the organism. (wikipedia.org)
  • This reaction is analogous to that catalyzed by fumarase, except that ammonia rather than water is involved in the trans-elimination reaction. (ebi.ac.uk)