KEGG   REACTION: R12404
Entry
R12404                      Reaction                               
Name
4alpha-carboxy-5alpha-cholesta-8,24-dien-3beta-ol:NADP+ 3-oxidoreductase (decarboxylating)
Definition
4alpha-Carboxy-5alpha-cholesta-8,24-dien-3beta-ol + NADP+ <=> Zymosterone + NADPH + H+ + CO2
Equation
Reaction class
RC03536  C22112_C22136
Enzyme
Pathway
rn00100  Steroid biosynthesis
rn01100  Metabolic pathways
rn01110  Biosynthesis of secondary metabolites
Module
M00101  Cholesterol biosynthesis, squalene 2,3-epoxide => cholesterol
M00102  Ergocalciferol biosynthesis, squalene 2,3-epoxide => ergosterol/ergocalciferol
Orthology
K07748  sterol-4alpha-carboxylate 3-dehydrogenase (decarboxylating) [EC:1.1.1.170]

KEGG   RCLASS: RC03536
Entry
RC03536                     RClass                                 
Definition
C1x-C1y:*-C6a:C1y+C5x-C1y+C1y
C5x-C1y:*-*:C1x+C1x+O5x-C1x+C1y+O1a
Reactant pair
Related class
Reaction
Enzyme
1.1.1.170       1.1.1.418
Pathway
rn00100  Steroid biosynthesis
rn01100  Metabolic pathways
rn01110  Biosynthesis of secondary metabolites
Orthology
K07748  sterol-4alpha-carboxylate 3-dehydrogenase (decarboxylating) [EC:1.1.1.170]
K23558  plant 3beta-hydroxysteroid-4alpha-carboxylate 3-dehydrogenase [EC:1.1.1.418]

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