Enzyme

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     1. Oxidoreductases
        1.1 Acting on the CH-OH group of donors
            1.1.1 With NAD+ or NADP+ as acceptor
ID:1.1.1.418
Description:(decarboxylating).
Alternative Name: 3-beta-hydroxysteroid dehydrogenases/C-4 decarboxylase.

3D structure

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References

RHEA:34775 a 3beta-hydroxysteroid-4alpha-carboxylate + NAD(+) = a 3-oxosteroid + CO2 + NADH
RULE(radius=1) [*:1]-[CH;+0:2](-[C;H0;+0:3](=[*:4])-[OH;+0:5])-[CH;+0:6](-[*:7])-[OH;+0:8].[*:9]-[n+;H0:10]1:[cH;+0:11]:[cH;+0:12]:[cH;+0:13]:[c;H0;+0:14](-[*:15]):[cH;+0:16]:1>>[*:1]-[CH2;+0:2]-[C;H0;+0:6](-[*:7])=[O;H0;+0:8].[*:9]-[N;H0;+0:10]1-[CH;+0:11]=[CH;+0:12]-[CH2;+0:13]-[C;H0;+0:14](-[*:15])=[CH;+0:16]-1.[*:4]=[C;H0;+0:3]=[O;H0;+0:5]
Reaction
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References

TitleAuthorsDatePubMed ID
Characterization of the Saccharomyces cerevisiae ERG26 gene encoding the C-3 sterol dehydrogenase (C-4 decarboxylase) involved in sterol biosynthesis.Gachotte D, Barbuch R, Gaylor J, Nickel E, Bard M1998 Nov 109811880
Mixed function oxidases in sterol metabolism. Source of reducing equivalents.Brady DR, Crowder RD, Hayes WJ1980 Nov 257430141
Partial purification of a microsomal sterol 4 -carboxylic acid decarboxylase.Rahimtula AD, Gaylor JL1972 Jan 104401584
NSDHL, an enzyme involved in cholesterol biosynthesis, traffics through the Golgi and accumulates on ER membranes and on the surface of lipid droplets.Caldas H, Herman GE2003 Nov 1514506130