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| 1,4-alpha-glucan branching enzyme | <enzyme> In glycogen or amylopectin synthesis, the enzyme that catalyses the transfer of a segment of a 1,4-alpha-glucan chain to a primary hydroxy group in a similar glucan chain. Chemical name: 1,4-alpha-D-Glucan:1,4-alpha-D-glucan 6-alpha-D-(1,4-alpha-D-glucano)-transferase Registry number: EC 2.4.1.18 (12 Dec 1998) |
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| 16 alpha-hydroxyprogesterone dehydratase | <enzyme> From rat intestinal anaerobic bacteria; forms 16-dehydroprogesterone Registry number: EC 4.2.1.- Synonym: 16 alpha-dehydratase (26 Jun 1999) |
| 17 alpha-hydroxyprogesterone aldolase | <enzyme> An enzyme of the lyase class that catalyses the cleavage of the bond between carbons 17 and 20 in 17-alpha hydroxyprogesterone to form delta 4-androstene-3,17-dione, an androgen. It also catalyses the conversion of 17 alpha-hydroxypregnenolone to dehydroepiandrosterone. Chemical name: 17 alpha-hydroxyprogesterone acetaldehyde-lyase Registry number: EC 4.1.2.30 (12 Dec 1998) |
| 24,25-dihydrolanosterol 14 alpha-oxidase | <enzyme> Oxidatively removes the 14 alpha-methyl group of sterols as formic acid; cytochrome p-450 dependent Registry number: EC 1.14.13.- Synonym: 14 alpha-methyl sterol oxidase (26 Jun 1999) |
| 2,4-dichlorophenoxyacetate-alpha-ketoglutarate dioxygenase | <enzyme> Encoded by the tfda gene of plasmide pjp4; an fe(ii)-dependent enzyme that catalyses the conversion of 2,4-dichlorophenoxyacetate to 2,4-dichlorophenol and glyoxylate concomitant with the deomposition of alpha-ketoglutarate to succinate and co2 Registry number: EC 1.14.11.- Synonym: 2,4-d-kdg (26 Jun 1999) |
| 2-O-alpha-D-glucopyranosyl-O-beta-D-galactopyranosyl-hydroxylysine glucohydrolase | <enzyme> Responsible for catabolism of hydroxylysine-linked disaccharide unit derived from collagen in mammals Registry number: EC 3.2.1.- Synonym: glc-gal-hyl glucohydrolase, ggh-glucohydrolase (26 Jun 1999) |
| 3 alpha-hydroxysteroid-5 beta-oxidoreductase | <enzyme> From digitalis lanata; specific for 5 beta-pregnan-3-ones; does not act on 5 alpha-pregnane-3-ones or delta 4/delta 5-pregnenes Registry number: EC 1.1.1- Synonym: 3a ohs oxidoreductase (26 Jun 1999) |
| 3 beta,20 alpha-hydroxysteroid oxidoreductase | <enzyme> From calf foetal red blood cells; 17 beta-hydroxy-5 alpha-androstan-3-one and progesterone can act as substrates of 3 beta and 20 alpha reductase activities, respectively Registry number: EC 1.1.1.- Synonym: 3,20-hs oxidoreductase (26 Jun 1999) |
| 4-alpha-d-glucanotransferase | Dextrin transglycosylase or glycosyltransferase;a 4-glycosyltransferase converting maltodextrins into amylose and glucose by transferring parts of 1,4-glucan chains to new 4-positions on glucose or other 1,4-glucans. Synonym: amylomaltase, D enzyme, dextrin glycosyltransferase, dextrin transglycosylase, disproportionating enzyme. (05 Mar 2000) |
| 4 alpha-glucanotransferase | <enzyme> D-enzyme from plants claimed to be different from amylomaltase, but given same EC number Registry number: EC 2.4.1.25 Synonym: amylomaltase, disproportionating enzyme, d-enzyme, dextrin glycosyl-transferase, gtase, maltodextrin glycosyltransferase (26 Jun 1999) |
| (4-fluorophenyl)-alpha-methyl-5-benzoxazole methylamine | Amine derivative of flunoxaprofen. Pharmacological action: fluorescent dye Synonym: s-flopa (26 Jun 1999) |
| L-alpha-glycerol-phosphate oxidase | <enzyme> Uses molecular oxygen; forms hydrogen peroxide and dehydroxyacetonephosphate Registry number: EC 1.1.3.- Synonym: glycerolphosphate oxidase (26 Jun 1999) |
| l-alpha-narcotine | <chemical> A naturally occurring opium alkaloid that is a centrally acting antitussive agent. Pharmacological action: antitussive agents. Chemical name: 1(3H)-Isobenzofuranone, 6,7-dimethoxy-3-(5,6,7,8-tetrahydro-4-methoxy-6-methyl-1,3-dioxolo(4,5-g)isoquinolin-5-yl)-, (S-(R*,S*))- (12 Dec 1998) |
| 4-methylumbelliferyl alpha-galactosidase | <enzyme> Aspect of EC 3.2.1.22, alpha-galactosidase Registry number: EC 3.2.1.- (26 Jun 1999) |
| 4-nitrophenyl-alpha-glucosidase | <enzyme> Involved in glycoprotein precessing; cleaves 1-3 linked glucose residues Registry number: EC 3.2.1.- Synonym: pnp-alpha-d-glucosidase, para-nitrophenyl-alpha-glucosidase, glucosidase II (26 Jun 1999) |