| aspartate carbamoyltransferase | <enzyme> An enzyme that catalyses the conversion of carbamoyl phosphate and l-aspartate to yield orthophosphate and n-carbamoyl-l-aspartate. Chemical name: Carbamoyl-phosphate:L-aspartate carbamoyltransferase Registry number: EC 2.1.3.2 (12 Dec 1998) |
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| aspartate kinase | <enzyme> An enzyme that catalyses the formation of beta-aspartyl phosphate from aspartic acid and ATP. Threonine serves as an allosteric regulator of this enzyme to control the biosynthetic pathway from aspartic acid to threonine. Chemical name: ATP:L-aspartate 4-phosphotransferase Registry number: EC 2.7.2.4 (12 Dec 1998) |
| aspartate N-acetyltransferase | <enzyme> Nervous system enzyme that mediates synthesis of n-acetylaspartic acid; utilises acetyl-CoA Registry number: EC 2.3.1.17 (26 Jun 1999) |
| aspartate transaminase | <enzyme> An enzyme of the transferase class that catalyses the reaction of l-aspartate and 2-ketoglutarate to yield oxaloacetate and l-glutamate. The enzyme is a pyridoxal phosphate protein. In the liver the reaction transfers excess metabolic nitrogen into aspartate for disposal in the urea cycle. Chemical name: L-Aspartate:2-oxoglutarate aminotransaminase Registry number: EC 2.6.1.1 (12 Dec 1998) |
| aspartate-alpha-decarboxylase | <enzyme> Forms beta-alanine Registry number: EC 4.1.1.11 Synonym: aspartate 1-decarboxylase (26 Jun 1999) |
| aspartate-ammonia ligase | <enzyme> An enzyme that catalyses the formation of asparagine from ammonia and aspartic acid, in the presence of ATP. Chemical name: L-Aspartate:ammonia ligase (AMP-forming) Registry number: EC 6.3.1.1 (12 Dec 1998) |
| aspartate-saemialdehyde dehydrogenase | <enzyme> An enzyme that catalyses the conversion of l-aspartate 4-saemialdehyde, orthophosphate, and NADP+ to yield l-4-aspartyl phosphate and NADPH. Chemical name: L-Aspartate-4-saemialdehyde:NADP+ oxidoreductase (phosphorylating) Registry number: EC 1.2.1.11 (12 Dec 1998) |
| aspartate-trna ligase | <enzyme> An enzyme that activates aspartic acid with its specific transfer RNA. Chemical name: L-Aspartate:tRNA-(Asp) ligase (AMP-forming) Registry number: EC 6.1.1.12 (12 Dec 1998) |
| aspartic | <chemistry> Pertaining to, or derived, asparagine; as, aspartic acid. Source: Websters Dictionary (01 Mar 1998) |
| aspartic acid | <amino acid> One of the twenty naturally occurring amino acids. Has the following chemical characteristics: pKa1 pKa2 pKa3 pI Water Solubility (30deg C)2.09-3.86 9.82 2.97 0.6 (09 Oct 1997) |
| aspartic acid 2-oxoglutarate-dependent dioxygenase | <enzyme> Hydroxylates one aspartic acid residue in the first egf-like unit of factor ix Registry number: EC 1.14.11.- Synonym: aspartate 2-oxoglutarate dioxygenase, asp-2-og-dioxygenase, aspartyl beta-hydroxylase, aspartyl (asparaginyl) beta-hydroxylase (26 Jun 1999) |
| aspartic proteinases | <enzyme> A sub-subclass of proteolytic enzymes which, because of the involvement of an acidic residue in the catalytic process, hydrolyzes the peptide bonds at a pH optimum below 5. Registry number: EC 3.4.23 (12 Dec 1998) |
| aspartokinase homoserine dehydrogenase | An enzyme complex consisting of aspartokinase, and homoserine dehydrogenase, The complex has been isolated from e. Coli and consists of four identical subunits with a molecular weight of 85,000. The enzyme complex is involved in the biosynthesis of amino acids of the aspartate family. (12 Dec 1998) |
| aspartyl | The aminoacyl radical of aspartic acid. (05 Mar 2000) |
| aspartylglucosylaminase | <enzyme> An enzyme that catalyses the conversion of n(4)-(beta-n-acetyl-d-glucosaminyl)-l-asparagine and water to n-acetyl-beta-d-glucosaminylamine and l-aspartate. It acts only on asparagine oligosaccharides containing one amino acid, i.e. The asparagine has free alpha-amino and alpha-carboxyl groups. Chemical name: N(4)-(beta-N-Acetyl-D-glucosaminyl)-L-asparagine amidohydrolase Registry number: EC 3.5.1.26 (12 Dec 1998) |