| serine diazoacetate | <drug> An analogue of glutamine that competitively inhibits various pathways in which glutamine is metabolised, hence an antibiotic and antitumour agent. (18 Nov 1997) |
|---|---|
| serine endopeptidase | <enzyme> Proteolytic enzyme from pronase& maise Registry number: EC 3.4.99.- Synonym: serine endopeptidase, maise (26 Jun 1999) |
| serine-glyoxylate aminotransferase | <enzyme> Pea enzyme; also uses asparagine as amino donor with either pyruvate or glyoxylate as acceptor Registry number: EC 2.6.1.45 Synonym: asparagine aminotransferase (26 Jun 1999) |
| serine protease | <enzyme> One of a group of endoproteases from both animal and bacterial sources that share a common reaction mechanism based on formation of an acyl enzyme intermediate on a specific active serine residue. Serine proteases are all irreversibly inactivated by a series of organophosphorus esters, such as di isopropylfluorophosphate (DFP) and by naturally occurring inhibitors (serpins). This group includes enzymes active in digestion, blood clotting, immune reactios, and fertilization of the ovum. Examples are trypsin, chymotrypsin and the bacterial enzyme subtilisin. (18 Nov 1997) |
| serine protease inhibitor | A class of highly polymorphic inhibitors of trypsin, elastase, and certain other proteases synthesised by hepatocytes and macrophages See: a1-antitrypsin. Synonym: serpins. (05 Mar 2000) |
| serine proteinase inhibitors | Exogenous or endogenous compounds which inhibit serine proteinases. (12 Dec 1998) |
| serine proteinases | <enzyme> Peptide hydrolases which have an active centre histidine and serine involved in the catalytic process. This group of enzymes is inactivated by organic fluorophosphates such as diisopropylphosphofluoridate (dipf). Registry number: EC 3.4.21 (12 Dec 1998) |
| serine-pyruvate aminotransferase | <enzyme> Do not confuse with alanine-glyoxylate aminotransferase (EC 2.6.1.44), even though they may be products of the same gene; index whichever is discussed or both Registry number: EC 2.6.1.51 Synonym: serine aminotransferase, serine-pyruvate transaminase (26 Jun 1999) |
| serine sulfhydrase | <enzyme> A multifunctional pyridoxal phosphate enzyme. In the second stage of cysteine biosynthesis it catalyses the reaction of homocysteine with serine to form cystathionine with the elimination of water. Chemical name: L-Serine hydro-lyase (adding homocysteine) Registry number: EC 4.2.1.22 (12 Dec 1998) |
| serine sulfhydrolyase | <enzyme> Serine + hydrogen sulfide gives cysteine Registry number: EC 4.2.99.- (26 Jun 1999) |
| serine-trna ligase | <enzyme> An enzyme that activates serine with its specific transfer RNA. Chemical name: L-Serine:tRNA(Ser) ligase (AMP-forming) Registry number: EC 6.1.1.11 (12 Dec 1998) |
| serine-type D-Ala-D-Ala carboxypeptidase | <enzyme> Cleaves between d-ala residues of bacterial cell wall peptidoglycan; also catalyses transpeptidation of peptidyl-alanyl moieties that are n-acyl substituents of d-alanine Registry number: EC 3.4.16.4 Synonym: ala-ala carboxypeptidase, serine-type, dd-peptidase, d-alanyl-d-alanine-carboxypeptidase (26 Jun 1999) |
| pyrophosphate-serine phosphotransferase | <enzyme> Catalyses the conversion of pyrophosphate and serine to form phosphoserine and orthophosphate Registry number: EC 2.7.1.80 (26 Jun 1999) |
| NADP+-dependent serine dehydrogenase | <enzyme> Catalyses the oxidation of the hydroxyl group of ser to form 2-aminomalonate saemialdehyde; from agrobacterium tumefaciens. Registry number: EC 1.1.1.- Synonym: nadp+ ser dehydrogenase (26 Jun 1999) |
| Stat5a serine kinase | <enzyme> Do not confuse with stat5a protein Registry number: EC 2.7.10.- (26 Jun 1999) |