| alpha-hydroxyethylthiamin pyrophosphate | The activated form of acetaldehyde that is formed during the decarboxylation of active pyruvate. Formed in alcohol fermentation and in carbohydrate metabolism. Synonym: a-hydroxyethylthiamin pyrophosphate. (05 Mar 2000) |
|---|---|
| alpha-hydroxyglycine amidating dealkylase | <enzyme> From bovine neurointermediate pituitary; catalyses the conversion of alpha-hydroxybenzoylglycine to benzamide and glycolytic acid Registry number: EC 1.14.99.- Synonym: hgad-ase (26 Jun 1999) |
| alpha interferon | <cytokine> Interferon which is released by leukocytes in response to a viral infection. A protein cytokine that is used as an anticancer agent. (15 Nov 1997) |
| alpha-keto acid dehydrogenase | See: alpha-keto acid dehydrogenase. Anaerobic dehydrogenase, an enzyme (usually a pyridinoenzyme) catalyzing the transfer of hydrogen from some metabolite to some acceptor molecule (e.g., NAD+, cytochrome) other than oxygen; e.g., lactate dehydrogenase's, isocitrate dehydrogenase's, and others in EC class 1, excluding those listed under aerobic dehydrogenase. (05 Mar 2000) |
| alpha-keto acid dehydrogenase complex | See: alpha-keto acid dehydrogenase. Anaerobic dehydrogenase, an enzyme (usually a pyridinoenzyme) catalyzing the transfer of hydrogen from some metabolite to some acceptor molecule (e.g., NAD+, cytochrome) other than oxygen; e.g., lactate dehydrogenase's, isocitrate dehydrogenase's, and others in EC class 1, excluding those listed under aerobic dehydrogenase. (05 Mar 2000) |
| alpha-ketoadipate dehydrogenase | <enzyme> X-ketoadipic acid + nad + CoA yields glutaryl-CoA + co(2) + NADH + h Registry number: EC 1.2.1.- (26 Jun 1999) |
| alpha-ketoarginine decarboxylase | <enzyme> Alpha-ketoarginine gives gamma-guanidinobutyraldehyde Registry number: EC 4.1.1.- Synonym: alpha keto-arginine decarboxylase (26 Jun 1999) |
| alpha-ketobutyrate dehydrogenase | <enzyme> Rat liver enzyme oxidatively decarboxylates alpha-ketobutyrate to carbon dioxide and propionyl CoA; requires nad, fad and thiamine pyrophosphate Registry number: EC 1.2.1.- (26 Jun 1999) |
| alpha-ketodecarboxylase | Formerly, the enzyme system converting pyruvate (a 2-oxoacid) to acetyl-CoA and CO2, with reduction of NAD+ to NADH and the participation of lipoamide and thiamin pyrophosphate; now known to involve at least three enzymes in succession: pyruvate dehydrogenase, dihydrolipoamide acetyltransferase, and dihydrolipoamide dehydrogenase. Compare: pyruvate dehydrogenase (lipoamide). (05 Mar 2000) |
| alpha-ketoglutaramic acid | H2N-COCH2CH2COCOOH;a metabolite of glutamine formed by the action of glutamine aminotransferase; elevated in certain cases of hepatocoma. Synonym: 2-oxoglutaric acid. (05 Mar 2000) |
| alpha-ketoglutarate | A salt or ester of alpha-ketoglutaric acid. Alpha-ketoglutarate dehydrogenase, an enzyme that catalyses the oxidative decarboxylation of 2-ketoglutaric acid to succinyldihydrolipoate; the succinyl group is later transferred to CoA and the reduced lipoate is oxidised by NAD+; a complex that is a part of the tricarboxylic acid cycle. Synonym: 2-oxoglutarate dehydrogenase, alpha-ketoglutarate dehydrogenase complex. (05 Mar 2000) |
| alpha-ketoglutarate dehydrogenase complex | alpha-ketoglutarate dehydrogenase |
| alpha-ketoglutarate permease | <chemical> From E coli; 432-amino acid protein; amino acid sequence given in first source Synonym: kGTP gene product, wita protein, alpha-ketoglutarate transporter (26 Jun 1999) |
| alpha-ketoisocaproate oxygenase | <enzyme> From rat liver cytosol; oxidatively decarboxylates and hydroxylates alpha-ketoisocaporate to form beta-hydroxyisovalerate; requires fe(2+) and thiol; activated by ascorbate Registry number: EC 1.13.11.- Synonym: 2-ketoisocaproate oxygenase, alpha-ketoisocaproate dioxygenase (26 Jun 1999) |
| alpha-ketosuccinamic acid | NH2-CO-CH2-CO-COOH;the transamination product of asparagine; acted upon by ω-amidase. (05 Mar 2000) |