| 5 alpha-3 alpha-hydroxysteroid dehydrogenase | <enzyme> Androsterone can be substrate Registry number: EC 1.1.1.50 Synonym: 3 alpha-hydroxysteroid dehydrogenase, 3 alpha-hydroxysteroid oxidoreductase, 3 oc-hydroxysteroid dehydrogenase (26 Jun 1999) |
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| 5 alpha-androstane 3 beta,17 beta-diol 7 alpha-hydroxylase | <enzyme> Requires NADPH, found in rat prostate microsomes Registry number: EC 1.14.13.- Synonym: artdl 7 alpha-hydroxylase (26 Jun 1999) |
| 5 alpha-androstane-3 beta,17 beta-diol 6 alpha-hydroxylase | <enzyme> Requires NADPH, found in rat prostatic microsomes Registry number: EC 1.14.13.- Synonym: artdl 6 alpha-hydroxylase (26 Jun 1999) |
| 5 alpha-dihydroprogesterone 3 alpha-hydroxysteroid oxidoreductase | <enzyme> Catalyses conversion of 5 alpha-dihydroprogesterone to 3 alpha -hydroxy-5 alpha-pregnane-20-one Registry number: EC 1.1.1.- Synonym: 5-dp-3 alpha-hso, NADPH-5 alpha-dihydroprogesterone 3 alpha-hydroxysteroid oxidoreductase, alpha-hsor (26 Jun 1999) |
| 5 beta-cholestane-3 alpha,7 alpha-diol 26-hydroxylase | <enzyme> Nadp-dependent Registry number: EC 1.14.13.- (26 Jun 1999) |
| 5'(3')-nucleotidase | <enzyme> From rat liver; dephosphorylates 2',3' and 5'-nucleotides; has preference for 5'-deoxyribonucleotides Registry number: EC 3.1.3.- (26 Jun 1999) |
| 5'-deoxyadenosylcobalamin | An active coenzyme form of vitamin B12; required in the conversion of methylmalonyl-CoA to succinyl-CoA. A deficiency of 5'-deoxyadenosylcobalamin will result in methylmalonic acidemia. (05 Mar 2000) |
| 5'-exoribonuclease | <enzyme> From quail oviduct; acts on poly a; aloso from human placenta hydrolyzing single-stranded RNA Registry number: EC 3.1.13.- Synonym: 5'-3'-exoribonuclease (26 Jun 1999) |
| 5'-guanylic acid | <chemical> Guanosine 5'-monophosphate. A guanine nucleotide containing one phosphate group esterified to the sugar moiety and found widely in nature. Chemical name: 5'-Guanylic acid (12 Dec 1998) |
| 5'-methylthioadenosine phosphorylase | <enzyme> Methylthioadenosine to methylthioribose-1-phosphate and adenine in the presence of orthophosphate Registry number: EC 2.4.2.28 Synonym: methylthioadenosine nucleosidase, methylthioadenosine phosphorylase, 5'-deoxy-5'-methylthioadenosine phosphorylase (26 Jun 1999) |
| 5'-nucleotidase | <enzyme> A glycoprotein enzyme present in various organs and in many cells. The enzyme catalyses the hydrolysis of a 5'-ribonucleotide to a ribonucleoside and orthophosphate in the presence of water. It is cation-dependent and exists in a membrane-bound and soluble form. Chemical name: 5'-Ribonucleotide phosphohydrolase Registry number: EC 3.1.3.5 (12 Dec 1998) |
| 5'-phosphate-polyribonucleotide kinase | <enzyme> In presence of ATP and mg++ catalyses conversion of 5'-phosphate and 5'-diphosphate termini of RNA to 5'-triphosphate Registry number: EC 2.7.4.- (26 Jun 1999) |
| 5'-pre-tRNA endonuclease | <enzyme> Processes the 5' leader from primary transcript of human trna(met)(i)gene Registry number: EC 3.1.26.- (26 Jun 1999) |
| 5,10-methenyltetrahydrofolate synthetase | <enzyme> Chemical name: 5-formyltetrahydrofolate cyclo-ligase (ADP-forming) Registry number: EC 6.3.3.2 Synonym: 5,10-mthf synthetase, 5-formyl tetrahydrofolate cyclodehydrase, 5-formyltetrahydrofolate cyclo-ligase (26 Jun 1999) |
| 5,5-diethylbarbituric acid | <chemical> A long-acting barbiturate that depresses most metabolic processes at high doses. It is used as a hypnotic and sedative and may induce dependence. Barbital is also used in veterinary practice for central nervous system depression. Pharmacological action: gaba modulators, sedatives, barbiturate. Chemical name: 2,4,6(1H,3H,5H)-Pyrimidinetrione, 5,5-diethyl- (12 Dec 1998) |