| N-(5-amino-1-ribosyl-4-imidazolylcarbonyl)-L-aspartic acid 5'-phosphate synthetase | <enzyme> 5-amino-1-ribosyl-4-imidazole carboxylic acid 5'-phosphate (carboxy-air), ATP and aspartate yield n(5-amino-4-imidazolylcarbonyl)-l-aspartic acid 5'-phosphate(succino-aicar), ADP and p Registry number: EC 6.3.4.- (26 Jun 1999) |
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| N(6)-(6-carbamoylhexyl)-FAD-D-amino acid oxidase | <enzyme> A semi-synthetic oxidase; prepared by reacting the succinimido ester of n(6)-(6-carboxyhexyl)-fad with apo-d-amino acid oxidase from pig kidney in the presence of the benzoate Registry number: EC 1.4.3.- Synonym: nch-fad-daao (26 Jun 1999) |
| N-carbamoyl-D-amino acid amidohydrolase | <enzyme> From comamonas sp.e222c; mw 120 kD; hydrolyzes d-enantiomers of various n-carbamoyl-d-amino acids to d-amino acids, ammonia and co2; sensitive to thiol reagents; does not require metal ions Registry number: EC 3.5.1.- Synonym: caa-amidohydrolase, carbamoyl d-aa amidohyrolase (26 Jun 1999) |
| nonessential amino acid | <biochemistry> The amino acid's that can be synthesised by an organism and are thus not required in the diet. (05 Mar 2000) |
| nonpolar amino acid | An alpha-amino acid in which the functional group attached to the alpha-carbon (i.e., R in RCH(NH2)COOH) has hydrophobic properties; e.g., valine, leucine, alpha-aminobutyrate. (05 Mar 2000) |
| D-amino acid malonyltransferase | <enzyme> From mung beans Registry number: EC 2.3.1.- Synonym: 1-aminocyclopropanecarboxylate malonyltransferase, d-acc-malonyltransferase, acc n-malonyltransferase (26 Jun 1999) |
| d-amino-acid oxidase | <enzyme> Chemical name: D-Amino-acid:oxygen oxidoreductase (deaminating) Registry number: EC 1.4.3.3 (12 Dec 1998) |
| D-amino acid transaminase | <enzyme> Catalyses the alpha,beta elimination of the (d)-isomer of beta-chloroalanine or other amino acids to yield pyruvate, chloride and ammonia Registry number: EC 2.6.1.- (26 Jun 1999) |
| D-amino acid transferase | <enzyme> Mw 41 kD; catalyses d-amino acid transfer; d-configuration specific; recognises aromatic d-amino acid esters to form oligo d-amino acid esters Registry number: EC 2.3.2.- (26 Jun 1999) |
| dibasic amino acid | An amino acid containing a second basic group (usually an amino group); e.g., lysine, arginine, ornithine. Synonym: dibasic amino acid. (05 Mar 2000) |
| essential amino acid | <biochemistry> Those amino acids that cannot be synthesised by an organism and must therefore be present in the diet. The term is often applied anthropocentrically to those amino acids required by humans (Ileu, Leu, Lys, Met, Phe, Thr, Try, & Val), though rats need two more (Arg & His). (18 Nov 1997) |
| 1-carbamoyl-L-amino acid amidohydrolase | <enzyme> From bacillus stearothermophilus; amino acid sequence given in first source Registry number: EC 3.5.1.- Synonym: carbamoyl l-aa amidohydrolase, n-carbamyl-l-amino acid amidohydrolase (26 Jun 1999) |
| amino- | <prefix> Prefix denoting a compound containing the radical, -NH2. Origin: an(monia) + in(e) + -o- (05 Mar 2000) |
| amino acids | Organic compounds that generally contain an amino (-nh2) and a carboxyl (-cooh) group. Twenty alpha-amino acids are the subunits which are polymerised to form proteins. (12 Dec 1998) |
| amino acids, branched-chain | Amino acids which have a branched carbon chain. (12 Dec 1998) |