| NA | Avogadro constant or number; nalidixic acid; Narcotics Anonymous; network administrator; neuraminida... |
|---|---|
| NAA | N-acetyl aspartate; naphthaleneacetic acid; neutral amino acid; neutron activation analysis; neutrop... |
| TCA | T-cell A locus; terminal cancer; tetracyclic antidepressant; total cholic acid; total circulating al... |
| TPA | tannic acid, polyphosphomolybdic acid, and amino acid; 12-0-tetradecanoyl-phorbol-13-acetate; third-... |
| UA | absorption unsharpness; ultra-audible; ultrasonic arteriography; umbilical artery; unauthorized abse... |
| aklanonic acid methyltransferase | <enzyme> Catalyses the methyl esterification of aklanonic acid; involved in daunomycin biosynthesis; genbank l35154; see also daunorubicin-doxorubicin polyketide synthase Registry number: EC 2.1.1.- Synonym: dauc protein, dauc gene product, aamtase, dnrc protein, dnrc gene product (26 Jun 1999) |
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| alcohol acid | A group of compounds that contain both the carboxyl and hydroxy radicals; e.g., glycolic acid. (05 Mar 2000) |
| aldaric acid | One of a group of sugar acids characterised by the formula HOOC-(CHOH)n-COOH; e.g., saccharic acid. (05 Mar 2000) |
| aldehydic acid | <biochemistry> Dicarboxylic acids in which one of the carboxyl groups (-cooh) has been replaced by an aldehyde group (-cho). (12 Dec 1998) |
| aldobiuronic acid | Condensation products of an aldose and a uronic acid; such groupings occur among the components of various mucopolysaccharides, notably hyaluronic acid. (05 Mar 2000) |
| allantoic acid | Diureidoacetic acid;a degradation product of allantoin. (05 Mar 2000) |
| allodeoxycholic acid | 3a,12alpha-dihydroxy-5alpha-cholan-24-oic acid, one of the bile acids. (05 Mar 2000) |
| allomaleic acid | Trans-Butanedioic acid;an unsaturated dicarboxylic acid occurring as an intermediate in the tricarboxylic acid cycle. Synonym: allomaleic acid. (05 Mar 2000) |
| allophanic acid | NH2CONHCOOH; urea carbonic acid;its amide is biuret (allophanamide). Synonym: carbamoylcarbamic acid, N-carboxyurea. (05 Mar 2000) |
| alpha-acetolactic acid | An intermediate in pyruvic acid catabolism and valine biosynthesis; CH3COC(OH)(CH3)-COOH. (05 Mar 2000) |
| alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid | <chemical> Alpha-amino-2,3-dihydro-5-methyl-3-oxo-4-isoxazolepropanoic acid. An ibotenic acid homolog and glutamate agonist. The compound is the defining agonist for the ampa subtype of glutamate receptors (receptors, ampa). It has been used as a radionuclide imaging agent but is more commonly used as an experimental tool in cell biological studies. Pharmacological action: excitatory amino acid agonists. Chemical name: 4-Isoxazolepropanoic acid, alpha-amino-2,3-dihydro-5-methyl-3-oxo- (12 Dec 1998) |
| alpha-amino acid | Typically, an amino acid of the general formula R-CHNH2-COOH (i.e., the NH2 in the a position); the l forms of these are the hydrolysis products of proteins. In rarer usages, this class of molecules also includes alpha-amino phosphoric acids and alpha-aminosulfonic acids. (05 Mar 2000) |
| alpha-amino acid esterase | <enzyme> Converts alpha-amino acid esters and water to alpha-amino acids and alcohol Registry number: EC 3.1.1.43 Synonym: alpha-amino acid ester hydrolase (26 Jun 1999) |
| alpha-aminoadipic acid | 2-amino-1,6-hexanedioic acid;an intermediate of lysine biosynthesis in higher fungi and bacteria, but not in algae and higher plants. Also in degradation of lysine in mammals. (05 Mar 2000) |
| alpha-amino-beta-ketoadipic acid | 2-Amino-3-oxo-1,6-hexanedioic acid;an intermediate of porphobilinogen synthesis formed by d-aminolevulinic acid synthase from succinyl-CoA and glycine; it rapidly decarboxylates to d-aminolevulinic acid. (05 Mar 2000) |