Enzyme

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     1. Oxidoreductases
        1.3 Acting on the CH-CH group of donors
            1.3.99 With unknown physiological acceptors
ID:1.3.99.5
Description:3-oxo-5-alpha-steroid 4-dehydrogenase (acceptor).
Alternative Name: Steroid 5-alpha-reductase.

3D structure

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References

External Links

UniProtKB Enzyme Link: UniProtKB 1.3.99.5
BRENDA Enzyme Link: BRENDA 1.3.99.5
KEGG Enzyme Link: KEGG1.3.99.5
BioCyc Enzyme Link: BioCyc 1.3.99.5
ExPASy Enzyme Link: ExPASy1.3.99.5
EC2PDB Enzyme Link: EC2PDB 1.3.99.5
ExplorEnz Enzyme Link: ExplorEnz 1.3.99.5
PRIAM enzyme-specific profiles Link: PRIAM 1.3.99.5
IntEnz Enzyme Link: IntEnz 1.3.99.5
MEDLINE Enzyme Link: MEDLINE 1.3.99.5
MSA:

1.3.99.5;

Phylogenetic Tree:

1.3.99.5;

Uniprot:
M-CSA:
RHEA:51060 5alpha-androst-1-ene-3,17-dione + A = AH2 + androsta-1,4-diene-3,17-dione
RULE(radius=1) [*:1]-[CH2;+0:2]-[CH;+0:3](-[*:4])-[*:5]>>[*:1]-[CH;+0:2]=[C;H0;+0:3](-[*:4])-[*:5]
Reaction
Core-to-Core More

References

TitleAuthorsDatePubMed ID
Cloning, sequencing, and expression of the Pseudomonas testosteroni gene encoding 3-oxosteroid delta 1-dehydrogenase.Plesiat P, Grandguillot M, Harayama S, Vragar S, Michel-Briand Y1991 Nov1657885
Comamonas testosteroni 3-ketosteroid-delta 4(5 alpha)-dehydrogenase: gene and protein characterization.Florin C, Köhler T, Grandguillot M, Plesiat P1996 Jun8655514

RHEA:51048 5alpha-androstan-3,17-dione + A = AH2 + androst-4-ene-3,17-dione
RULE(radius=1) [*:1]-[CH2;+0:2]-[CH;+0:3](-[*:4])-[*:5]>>[*:1]-[CH;+0:2]=[C;H0;+0:3](-[*:4])-[*:5]
Reaction
Core-to-Core More

References

TitleAuthorsDatePubMed ID
Comamonas testosteroni 3-ketosteroid-delta 4(5 alpha)-dehydrogenase: gene and protein characterization.Florin C, Köhler T, Grandguillot M, Plesiat P1996 Jun8655514
Bacterial oxidation of steroids. II. Studies on the enzymatic mechanism of ring A dehydrogenation.LEVY HR, TALALAY P1959 Aug13673006
A new bacterial steroid degradation gene cluster in Comamonas testosteroni TA441 which consists of aromatic-compound degradation genes for seco-steroids and 3-ketosteroid dehydrogenase genes.Horinouchi M, Hayashi T, Yamamoto T, Kudo T2003 Aug12902225

RHEA:13805 A + a 3-oxo-5alpha-steroid = a 3-oxo-Delta(4)-steroid + AH2
RULE(radius=1) [*:1]-[CH2;+0:2]-[CH;+0:3](-[*:4])-[*:5]>>[*:1]-[CH;+0:2]=[C;H0;+0:3](-[*:4])-[*:5]
Reaction
Core-to-Core More

References

TitleAuthorsDatePubMed ID
Comamonas testosteroni 3-ketosteroid-delta 4(5 alpha)-dehydrogenase: gene and protein characterization.Florin C, Köhler T, Grandguillot M, Plesiat P1996 Jun8655514
A new bacterial steroid degradation gene cluster in Comamonas testosteroni TA441 which consists of aromatic-compound degradation genes for seco-steroids and 3-ketosteroid dehydrogenase genes.Horinouchi M, Hayashi T, Yamamoto T, Kudo T2003 Aug12902225