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1. 1.13.11.25 enzyme   steroid 4,5-dioxygenase
                      3-alkylcatechol 2,3-dioxygenase
                      3,4-dihydroxy-9,10-secoandrosta-1,3,5(10)-triene-9,17-dione  4,5-dioxygenase
                      3,4-dihydroxy-9,10-secoandrosta-1,3,5(10)-triene-9,17-dione:oxygen 4,5-oxidoreductase (decyclizing)

2. 1.14.15.6 enzyme   desmolase, steroid 20-22
                      steroid 20-22 desmolase
                      steroid 20-22-lyase
                      cholesterol desmolase
                      cytochrome P-450scc
                      cholesterol 20-22-desmolase
                      cholesterol C20-22 desmolase
                      C27-side chain cleavage enzyme
                      cholesterol monooxygenase (side-chain-cleaving)
                      cholesterol side-chain cleavage enzyme
                      cholesterol side-chain-cleaving enzyme
                      enzymes, cholesterol side-chain-cleaving
                      cholesterol,reduced-adrenal-ferredoxin:oxygen oxidoreductase (side-chain-cleaving)

3. 1.14.99.10 enzyme   steroid 21-hydroxylase
                      steroid 21-monooxygenase
                      steroid,hydrogen-donor:oxygen oxidoreductase (21-hydroxylating)
                      21-hydroxylase

4. 2.4.1.39 enzyme   steroid acetylglucosaminyltransferase
                      hydroxy steroid acetylglucosaminyltransferase
                      steroid N-acetylglucosaminyltransferase
                      uridine diphosphoacetylglucosamine-steroid  acetylglucosaminyltransferase
                      UDP-N-acetyl-D-glucosamine:estradiol-17alpha-3-D-glucuronoside 17alpha-N-acetylglucosaminyltransferase

5. 2.8.2.15 enzyme   steroid sulfotransferase
                      steroid alcohol sulfotransferase
                      3'-phosphoadenylyl-sulfate:phenolic-steroid sulfotransferase

6. 2.8.2.2 enzyme   hydroxysteroid sulfotransferase
                      steroid sulfokinase
                      steroid sulfotransferase
                      3-hydroxysteroid sulfotransferase
                      3beta-hydroxysteroid sulfotransferase
                      alcohol/hydroxysteroid sulfotransferase
                      steroid alcohol sulfotransferase
                      3beta-hydroxy steroid sulfotransferase
                      delta5-3beta-hydroxysteroid sulfokinase
                      HST
                      alcohol sulfotransferase
                      cholesterol sulfotransferase
                      dehydroepiandrosterone sulfotransferase
                      estrogen sulfokinase
                      estrogen sulfotransferase
                      sterol sulfokinase
                      sterol sulfotransferase
                      5alpha-androstenol sulfotransferase
                      3'-phosphoadenylyl-sulfate:alcohol sulfotransferase

7. 3.1.1.37 enzyme   steroid-lactonase
                      testololactone lactonohydrolase

8. 3.1.6.2 enzyme   steroid sulfatase
                      phenolic steroid sulfatase
                      steroid 3-sulfatase
                      steroid sulfate sulfohydrolase
                      3-beta-hydroxysteroid sulfate sulfatase
                      arylsulfatase
                      arylsulfatase C
                      dehydroepiandrosterone sulfatase
                      pregnenolone sulfatase
                      sterol sulfatase
                      steryl-sulfatase
                      dehydroepiandrosterone sulfate sulfatase
                      steryl-sulfate sulfohydrolase

9. 5.3.3.1 enzyme   hydroxysteroid isomerase
                      steroid isomerase
                      3-oxosteroid isomerase
                      delta5-ketosteroid isomerase
                      delta5-steroid isomerase
                      steroid delta-isomerase
                      delta5-3-oxosteroid isomerase
                      3-oxosteroid delta5-delta4-isomerase
                      delta5-3-keto steroid isomerase
                      delta5(or delta4)-3-keto steroid isomerase

10. 1.14.13.54 enzyme   ketosteroid monooxygenase
                      steroid-ketone monooxygenase
                      ketosteroid,NADPH:oxygen oxidoreductase (20-hydroxylating, ester-producing/20-hydroxylating, side-chain cleaving/17-hydroxylating, lactonizing)
                      androstenedione, NADPH2:oxygen oxidoreductase (17-hydroxylating,  lactonizing)
                      progesterone, NADPH2:oxygen oxidoreductase (20-hydroxylating,  ester-producing)
                      17alpha-hydroxyprogesterone, NADPH2:oxygen oxidoreductase  (20-hydroxylating, side-chain cleaving)

11. 1.14.15.4 enzyme   steroid 11beta-hydroxylase
                      steroid 11beta-monooxygenase
                      oxygenase, steroid 11beta -mono-
                      steroid 11beta/18-hydroxylase
                      steroid,reduced-adrenal-ferredoxin:oxygen oxidoreductase (11beta-hydroxylating)

12. 1.14.99.24 enzyme   steroid 9alpha-hydroxylase
                      steroid 9alpha-monooxygenase
                      steroid,hydrogen-donor:oxygen oxidoreductase (9-epoxidizing)

13. 1.14.99.9 enzyme   steroid 17alpha-hydroxylase
                      steroid 17alpha-monooxygenase
                      steroid,hydrogen-donor:oxygen oxidoreductase (17alpha-hydroxylating)
                      cytochrome P-45017alpha
                      17alpha-hydroxylase-C17,20 lyase
                      cytochrome P-450 (P-45017alpha,lyase)

14. 1.1.1.151 enzyme   21-hydroxy steroid dehydrogenase
                      21-hydroxysteroid dehydrogenase (NADP)
                      21-hydroxysteroid dehydrogenase (NADP+)
                      NADP-21-hydroxysteroid dehydrogenase
                      21-hydroxysteroid:NADP+ 21-oxidoreductase
                      21-hydroxy steroid (nicotinamide adenine dinucleotide phosphate)  dehydrogenase
                      21-hydroxy steroid dehydrogenase (nicotinamide adenine dinucleotide  phosphate)

15. 1.1.1.270 enzyme   3-keto-steroid reductase
                      3beta-hydroxy-steroid:NADP+ 3-oxidoreductase
                      3-KSR

16. 1.3.1.22 enzyme   steroid 5alpha-hydrogenase
                      steroid 5alpha-reductase
                      3-oxosteroid 5alpha-reductase
                      3-oxosteroid delta4-dehydrogenase
                      delta4-3-ketosteroid 5alpha-oxidoreductase
                      4-ene-3-oxosteroid 5alpha-reductase
                      3-oxo-5alpha-steroid:NADP+ delta4-oxidoreductase
                      reduced nicotinamide adenine dinucleotide  phosphate:delta4-3-ketosteroid 5alpha-oxidoreductase
                      5alpha-reductase
                      cholestenone 5alpha-reductase
                      testosterone 5alpha-reductase
                      testosterone delta4-hydrogenase
                      4-ene-5alpha-reductase
                      testosterone delta4-5alpha-reductase
                      cholest-4-en-3-one 5alpha-reductase

17. 1.3.1.23 enzyme   steroid 5beta-reductase
                      delta4-3-ketosteroid 5beta-reductase
                      3-oxo-5beta-steroid:NADP+ delta4-oxidoreductase
                      5beta-reductase
                      androstenedione 5beta-reductase
                      cholestenone 5beta-reductase
                      delta4-5beta-reductase
                      testosterone 5beta-reductase

18. 1.3.1.30 enzyme   steroid 5-alpha-reductase
                      delta4-steroid 5alpha-reductase (progesterone)
                      progesterone 5alpha-reductase
                      5alpha-pregnan-3,20-dione:NADP+ 5-oxidoreductase

19. 1.3.99.4 enzyme   delta1-steroid reductase
                      3-ketosteroid-delta1-dehydrogenase
                      3-oxosteroid 1-dehydrogenase
                      3-oxosteroid delta1-dehydrogenase
                      3-ketosteroid-1-en-dehydrogenase
                      3-oxosteroid:(acceptor) delta1-oxidoreductase
                      3-oxosteroid:(2,6-dichlorphenolindophenol) delta1-oxidoreductase
                      4-en-3-oxosteroid:(acceptor)-1-en-oxido-reductase
                      delta1-dehydrogenase
                      1-ene-dehydrogenase

20. 1.3.99.5 enzyme   steroid 5alpha-reductase
                      3-oxosteroid delta4-dehydrogenase
                      delta4-3-ketosteroid5alpha-oxidoreductase
                      steroid delta4-5alpha-reductase
                      delta4-3-oxo steroid reductase
                      delta4-3-oxosteroid-5alpha-reductase
                      3-keto-delta4-steroid-5alpha-reductase
                      3-oxo-5alpha-steroid 4-dehydrogenase
                      3-oxo-5alpha-steroid delta4-dehydrogenase
                      4-ene-3-ketosteroid-5alpha-oxidoreductase
                      delta4-3-keto steroid 5alpha-reductase
                      3-oxo-5alpha-steroid:(acceptor) delta4-oxidoreductase
                      5alpha-reductase
                      delta4-5alpha-dehydrogenase
                      testosterone 5alpha-reductase

21. 2.4.1.17 enzyme   17-OH steroid UDPGT
                      17beta-hydroxysteroid UDP-glucuronosyltransferase
                      3alpha-hydroxysteroid UDP-glucuronosyltransferase
                      GT
                      UDPGT
                      glucuronosyltransferase
                      PNP-UDPGT
                      UDP glucuronosyltransferase
                      UDP glucuronyltransferase
                      UDP-glucuronosyltransferase
                      UDP-glucuronyltransferase
                      UDPGA transferase
                      UDPGA-glucuronyltransferase
                      bilirubin UDPGT
                      bilirubin glucuronyltransferase
                      morphine glucuronyltransferase
                      p-nitrophenylglucuronosyltransferase
                      uridine diphosphoglucuronosyltransferase
                      uridine diphosphoglucuronyltransferase
                      1-naphthol glucuronyltransferase
                      4-nitrophenol UDPGT
                      bilirubin UDP-glucuronosyltransferase
                      bilirubin monoglucuronide glucuronyltransferase
                      bilirubin uridine diphosphoglucuronyltransferase
                      ciramadol UDP-glucuronyltransferase
                      estriol UDP-glucuronosyltransferase
                      estrone UDP-glucuronosyltransferase
                      p-phenylphenol glucuronyltransferase
                      phenyl-UDP-glucuronosyltransferase
                      uridine 5'-diphosphoglucuronyltransferase
                      uridine diphosphate glucuronyltransferase
                      1-naphthol-UDP-glucuronosyltransferase
                      3-OH androgenic UDPGT
                      4-hydroxybiphenyl UDP-glucuronosyltransferase
                      4-methylumbelliferone UDP-glucuronosyltransferase
                      4-nitrophenol UDP-glucuronyltransferase
                      UDP glucuronate-estradiol-glucuronosyltransferase
                      UDP glucuronate-estriol glucuronosyltransferase
                      UDP glucuronic acid transferase
                      UDP-glucuronate-bilirubin glucuronyltransferase
                      p-hydroxybiphenyl UDP glucuronyltransferase
                      p-nitrophenol UDP-glucuronosyltransferase
                      p-nitrophenol UDP-glucuronyltransferase
                      uridine diphosphoglucuronate-bilirubin glucuronosyltransferase
                      uridine diphosphoglucuronate-estradiol glucuronosyltransferase
                      uridine diphosphoglucuronate-estriol glucuronosyltransferase
                      UDP-glucuronate-4-hydroxybiphenyl glucuronosyltransferase
                      uridine diphosphoglucuronate-4-hydroxybiphenyl  glucuronosyltransferase
                      uridine diphosphoglucuronate-bilirubin glucuronoside  glucuronosyltransferase
                      uridine diphosphoglucuronate-estriol 16alpha-glucuronosyltransferase
                      uridine diphosphoglucuronate-1,2-diacylglycerol  glucuronosyltransferase
                      UDP-glucuronate beta-D-glucuronosyltransferase (acceptor-unspecific)

22. 3.6.3.45 enzyme   steroid-transporting ATPase
                      ATP phosphohydrolase (steroid-exporting)
                      PDR protein
                      pleiotropic-drug-resistance protein

23. 1.1.1.146 enzyme   11beta-hydroxysteroid dehydrogenase
                      beta-hydroxysteroid dehydrogenase
                      corticosteroid 11-reductase
                      corticosteroid 11beta-dehydrogenase
                      11beta-hydroxy steroid dehydrogenase
                      dehydrogenase, 11beta-hydroxy steroid
                      11beta-hydroxysteroid:NADP+ 11-oxidoreductase

24. 1.1.1.147 enzyme   16alpha-hydroxysteroid dehydrogenase
                      16alpha-hydroxy steroid dehydrogenase
                      16alpha-hydroxysteroid:NAD(P)+ 16-oxidoreductase

25. 1.1.1.148 enzyme   17alpha-hydroxysteroid oxidoreductase
                      17alpha-hydroxy steroid dehydrogenase
                      17alpha-hydroxy steroid oxidoreductase
                      17alpha-hydroxysteroid:NAD(P)+ 17-oxidoreductase
                      17alpha-estradiol dehydrogenase
                      estradiol 17alpha-dehydrogenase
                      estradiol 17alpha-oxidoreductase

26. 1.1.1.149 enzyme   20alpha-hydroxysteroid dehydrogenase
                      20alpha-hydroxy steroid dehydrogenase
                      20alpha-hydroxysteroid:NAD(P)+ 20-oxidoreductase
                      20alpha-HSD
                      20alpha-HSDH

27. 1.1.1.159 enzyme   7alpha-hydroxysteroid dehydrogenase
                      7alpha-hydroxy steroid dehydrogenase
                      7alpha-hydroxysteroid:NAD+ 7-oxidoreductase
                      7alpha-HSDH

28. 1.1.1.176 enzyme   12alpha-hydroxysteroid dehydrogenase
                      12alpha-hydroxy steroid dehydrogenase
                      NADP-12alpha-hydroxysteroid dehydrogenase
                      12alpha-hydroxysteroid:NADP+ 12-oxidoreductase
                      NAD-dependent 12alpha-hydroxysteroid dehydrogenase

29. 1.1.1.51 enzyme   3beta-hydroxysteroid dehydrogenase
                      17beta-hydroxy steroid dehydrogenase
                      3beta-hydroxy steroid dehydrogenase
                      beta-hydroxy steroid dehydrogenase
                      3(or 17)beta-hydroxysteroid dehydrogenase
                      3(or 17)beta-hydroxysteroid:NAD(P)+ oxidoreductase
                      17-ketoreductase

30. 1.1.1.53 enzyme   20beta-hydroxysteroid dehydrogenase
                      (R)-20-hydroxysteroid dehydrogenase
                      NADH-20beta-hydroxysteroid dehydrogenase
                      dehydrogenase, 20beta-hydroxy steroid
                      delta4-3-ketosteroid hydrogenase
                      3alpha(or 20beta)-hydroxysteroid dehydrogenase
                      3alpha,20beta-hydroxysteroid:NAD+-oxidoreductase
                      3alpha(or 20beta)-hydroxysteroid:NAD+ oxidoreductase
                      20beta-HSD
                      cortisone reductase

31. 1.1.3.6 enzyme   3beta-Hydroxy steroid oxidoreductase
                      3beta-hydroxysteroid:oxygen oxidoreductase
                      cholesterol oxidase
                      cholesterol- O2 oxidoreductase
                      cholesterol:oxygen oxidoreductase

32. 1.3.1.4 enzyme   microsomal steroid reductase (5alpha)
                      delta4-3-ketosteroid reductase (5alpha)
                      delta4-3-oxosteroid-5alpha-reductase
                      NADPH:delta4-3-oxosteroid-5alpha-oxidoreductase
                      cortisone alpha-reductase
                      delta4-5alpha-reductase
                      cortisone delta4-5alpha-reductase
                      4,5alpha-dihydrocortisone:NADP+ delta4-oxidoreductase

33. 1.3.99.6 enzyme   3-oxo-5beta-steroid 4-dehydrogenase
                      3-oxo-5beta-steroid:(acceptor) delta4-oxidoreductase

34. 1.1.1.145 enzyme   delta5-3beta-hydroxysteroid dehydrogenase
                      3beta-hydroxy steroid dehydrogenase/isomerase
                      3beta-hydroxy-delta5-steroid dehydrogenase
                      steroid-delta5-3beta-ol dehydrogenase
                      3beta-hydroxy-5-ene steroid dehydrogenase
                      3beta-hydroxy-5-ene-steroid dehydrogenase
                      3beta-hydroxy-5-ene-steroid oxidoreductase
                      3beta-hydroxy-delta5-C27-steroid oxidoreductase
                      5-ene-3-beta-hydroxysteroid dehydrogenase
                      3beta-hydroxy-delta5-C27-steroid dehydrogenase/isomerase
                      3beta-hydroxy-delta5-steroid:NAD+ 3-oxidoreductase
                      3beta-HSDH
                      progesterone reductase

35. 1.1.1.152 enzyme   3alpha-hydroxy-5beta-steroid dehydrogenase
                      3alpha-hydroxy-5beta-steroid:NAD+ 3-oxidoreductase
                      etiocholanolone 3alpha-dehydrogenase
                      3alpha-hydroxy-5beta-androstan-17-one 3alpha-dehydrogenase

36. 1.1.1.181 enzyme   3beta-hydroxy-delta5-C27-steroid oxidoreductase
                      cholest-5-ene-3beta,7alpha-diol 3beta-dehydrogenase
                      Cholest-5-ene-3beta,7alpha-diol:NAD+ 3-oxidoreductase

37. 1.1.1.210 enzyme   3beta,20alpha-hydroxysteroid oxidoreductase
                      3beta(or 20alpha)-hydroxysteroid dehydrogenase
                      dehydrogenase, 3beta,20alpha-hydroxy steroid
                      3beta(or 20alpha)-hydroxysteroid:NADP+ oxidoreductase
                      progesterone reductase

38. 1.1.1.239 enzyme   3alpha(17beta)-hydroxysteroid dehydrogenase (NAD)
                      3alpha(17beta)-hydroxysteroid dehydrogenase (NAD+)
                      3alpha,17beta-hydroxy steroid dehydrogenase
                      3alpha(or 17beta)-hydroxysteroid:NAD+ oxidoreductase
                      3alpha(17beta)-HSD

39. 1.1.1.277 enzyme   3beta-hydroxysteroid 5beta-oxidoreductase
                      3beta-hydroxy-5beta-steroid dehydrogenase
                      3beta-hydroxysteroid 5beta-progesterone oxidoreductase
                      3beta-hydroxy-5beta-steroid:NADP+ 3-oxidoreductase

40. 1.1.1.278 enzyme   3beta-hydroxy-5alpha-steroid dehydrogenase
                      3beta-hydroxy-5alpha-steroid:NADP+ 3-oxidoreductase

41. 1.1.1.238 enzyme   12beta-hydroxysteroid dehydrogenase
                      12beta-hydroxysteroid:NADP+ 12-oxidoreductase
                      12beta-hydroxy steroid (nicotinamide adenine dinucleotide  phosphate) dehydrogenase


BiSSCat v1.06.20 http://bisscat.org/
Developed by Masaaki Kotera, Department of Biochemistry, Trinity College Dublin.
Science Foundation of Ireland is gratefully acknowledged.