| serum glutamic-pyruvic transaminase | <enzyme> An enzyme that is found primarily in the liver. It is released into the bloodstream as the result of liver damage. Also called the alanine aminotransferase (ALT) or serum glutamic pyruvic transaminase (SGPT). (27 Sep 1997) |
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| N6-acetyl-beta-lysine transaminase | <enzyme> Involved in oxidative catabolism of lysine by candida maltosa; forms 2-keto-6-acetamidocaproate Registry number: EC 2.6.1.65 Synonym: n6-acetyllysine transaminase, acl-at, n6-acetyllysine 2-oxoglutarate aminotransferase (26 Jun 1999) |
| 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) |
| ornithine-oxo-acid transaminase | <enzyme> A pyridoxal phosphate enzyme that catalyses the formation of glutamate gamma-saemialdehyde and an l-amino acid from l-ornithine and a 2-keto-acid. Chemical name: L-Ornithine:2-oxo-acid aminotransferase Registry number: EC 2.6.1.13 (12 Dec 1998) |
| ornithine transaminase | <enzyme> An enzyme that will reversibly catalyze the reaction of alpha-ketoglutarate and l-ornithine to form l-glutamate and l-glutamate gamma-saemialdehyde; a deficiency of this enzyme will result in gyrate atrophy of the choroid and retina. Synonym: ornithine transaminase. (05 Mar 2000) |
| transaminase | <enzyme> A subclass of enzymes that catalyse the transfer of an amino group from a donor (generally an amino acid) to an acceptor (generally 2 keto acid) in a cyclic process using pyridoxal phosphate as cofactor, for example aspartate amino transferase catalyses the reaction: aspartate + ketoglutarate = oxaloacetate + glutamate. (18 Nov 1997) |
| tyrosine-repressible transaminase | <enzyme> From E coli; catalyses the amination of 2-ketoisocaproate to leucine; encoded by tyrb; a functional leuabcd operon is required for leucine synthesis by this enzyme Registry number: EC 2.6.1.- Synonym: transaminase d, tyrosine-2-ketoisocaproate aminotransferase (26 Jun 1999) |
| tyrosine transaminase | <enzyme> An enzyme that catalyses the conversion of l-tyrosine and 2-oxoglutarate to 4-hydroxyphenylpyruvate and l-glutamate. It is a pyridoxal-phosphate protein. L-phenylalanine can act instead of l-tyrosine. The mitochondrial enzyme may be identical with aspartate transaminase (ec 2.6.1.1.). Chemical name: L-Tyrosine:2-oxoglutarate aminotransferase Registry number: EC 2.6.1.5 (12 Dec 1998) |
| 2,4-diaminobutyric acid transaminase | <enzyme> Catalyses conversion of l-aspartate beta-saemialdehyde to l-2,4-diaminobutyric acid Registry number: EC 2.6.1.46 Synonym: ectb gene product (26 Jun 1999) |
| 4-aminobutyrate transaminase | <enzyme> An enzyme that converts brain gamma-aminobutyric acid (gaba) into succinate saemialdehyde, which can be converted to succinic acid and enter the citric acid cycle. It also acts on beta-alanine. Chemical name: 4-Aminobutanoate:2-oxoglutarate aminotransferase Registry number: EC 2.6.1.19 (12 Dec 1998) |
| active pyruvate | An intermediate formed in the oxidative decarboxylation of pyruvate. Compare: pyruvate dehydrogenase (lipoamide). Synonym: alpha-lactyl-thiamin pyrophosphate. (05 Mar 2000) |
| beta-alanine-pyruvate aminotransferase | <enzyme> An enzyme that reversibly transfers the amino group of beta-alanine to paruvate, thus producing l-alanine and malonate saemialdehyde. A deficiency of this enzyme is believed to be the cause of hyper-beta-alaninaemia. (05 Mar 2000) |
| beta-aminoisobutyrate:pyruvate aminotransferase | Beta-aminosiobutyrate:pyruvate transaminase;an enzyme that catalyses the reversible transfer of an amino group from beta-aminoisobutyrate to pyruvate, producing l-alanine and methylmalonate saemialdehyde. A step in valine degradation. A deficiency of beta-aminoisobutyrate:pyruvate aminotransferase results in hyper-beta-aminoisobutyric aciduria. (05 Mar 2000) |
| glutamine-pyruvate aminotransferase | <enzyme> Consider also glutamine transaminase k if cysteine conjugate beta-lyase activity is also present; l-methionine can act as donor; glyoxylate can act as acceptor Registry number: EC 2.6.1.15 Synonym: glutamine alpha-ketoacid transaminase, glutamine transaminase, glutamine transaminase l, glutamine oxo-acid aminotransferase, glutaminase II, glutamine aminotransferase, l-methionine aminotransferase (26 Jun 1999) |
| chorismate pyruvate-lyase | <enzyme> Forms 4-hydroxybenzoic acid for ubiquinone biosynthesis; chorismate pyruvate-lyase (amino-accepting) is anthranilate synthase Registry number: EC 4.1.3.- Synonym: ubic gene product, chorismate lyase (26 Jun 1999) |