| D-3-hydroxyacyl CoA dehydratase | <enzyme> From rat liver peroxisomes; catalyses the epimerization of d-3-hydroxyacyl CoA by the dehydration of 3-hydroxyacyl-CoA to 2-trans-enoyl-CoA followed by the hydration of the latter enzyme to l-3-hydroxyacyl-CoA by enoyl-CoA hydratase (EC 4.2.1.17); is not active on 2-cis-enoyl CoA; consider also EC 4.2.1.74 Registry number: EC 4.2.1.- Synonym: d-3-hydroxyacyl coenzyme a dehydratase, beta-hydroxyacyl-CoA dehydratase (26 Jun 1999) |
|---|---|
| D-alanyl-L-alanine endopeptidase | <enzyme> Acts on peptidoglycan Registry number: EC 3.4.99.- Synonym: d-ala-l-ala endopeptidase (26 Jun 1999) |
| d-altro-2-heptulose | <biochemistry> Seven carbon sugar, whose phosphate derivatives are involved in the pentose phosphate pathway and the Calvin Benson cycle. (18 Nov 1997) |
| 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 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) |
| d-amino-acid oxidase | <enzyme> Chemical name: D-Amino-acid:oxygen oxidoreductase (deaminating) Registry number: EC 1.4.3.3 (12 Dec 1998) |
| d-aminobutyric acid | <enzyme> An enzyme catalyzing the reversible transfer of an amino group from d-aminobutyric acid to 2-oxoglutarate, thus forming a L-glutamic acid and succinate saemialdehyde. An important step in the catabolism of d-aminobutyric acid. (05 Mar 2000) |
| d-aminolevulinate dehydratase | <enzyme> An enzyme that catalyses the formation of porphobilinogen from two molecules of 5-aminolevulinic acid. Chemical name: 5-Aminolevulinate hydro-lyase (adding 5-aminolevulinate and cyclizing) Registry number: EC 4.2.1.24 (12 Dec 1998) |
| d-aminolevulinate dehydratase porphyria | An inherited disorder in which there is a deficiency of porphobilinogen synthase; d-aminolevulinate levels are elevated, leading to neurological disturbances. Synonym: porphobilinogen synthase porphyria. (05 Mar 2000) |
| d-aminolevulinic acid | NH2CH2COCH2CH2COOH;an acid formed by d-aminolevulinate synthase from glycine and succinyl-coenzyme A; a precursor of porphobilinogen, hence an important intermediate in the biosynthesis of haematin. ALA levels are elevated in cases of lead poisoning. (05 Mar 2000) |
| d-aminolevulinic acid synthase | <enzyme> An enzyme that catalyses the reaction of succinyl-CoA with glycine to form d-aminolevulinic acid, coenzyme A, and CO2. The committed step in porphyrin biosynthesis. Acronym: ALA (05 Mar 2000) |
| d-amphetamine phosphate | Monobasic d-alpha-methylphenethylamine phosphate;same actions and uses as dextroamphetamine sulfate. Synonym: d-amphetamine phosphate. (05 Mar 2000) |
| d-amphetamine sulfate | (+)-alpha-methylphenethylamine sulfate;similar in action to racaemic amphetamine sulfate, but is more stimulating to the central nervous system; sympathomimetic and appetite depressant. Synonym: d-amphetamine sulfate, dexamphetamine. (05 Mar 2000) |
| D-arabino-1-kinase | <enzyme> Do not confuse with d-arabinokinase, which places phosphate group at 5 position; l-arabinokinase places phosphate group at 1 position of l-arabinose (EC 2.7.1.46) Registry number: EC 2.7.1.- (26 Jun 1999) |