KEGG   REACTION: R07491
Entry
R07491                      Reaction                               
Name
episterol,ferrocytochrome b5:oxygen oxidoreductase 5,6-dehydrogenating
Definition
Episterol + 2 Ferrocytochrome b5 + Oxygen + 2 H+ <=> 5-Dehydroepisterol + 2 Ferricytochrome b5 + 2 H2O
Equation
C15777 + 2 C00999 + C00007 + 2 C00080 <=> C15780 + 2 C00996 + 2 C00001
Reaction class
RC00904  C15777_C15780
Enzyme
1.14.19.20
Pathway
rn00100  Steroid biosynthesis
rn01100  Metabolic pathways
rn01110  Biosynthesis of secondary metabolites
Module
M00102  Ergocalciferol biosynthesis, FPP => ergosterol/ergocalciferol
M00917  Phytosterol biosynthesis, squalene 2,3-epoxide => campesterol/sitosterol
Brite
Enzymatic reactions [BR:br08201]
 1. Oxidoreductase reactions
  1.14  Acting on paired donors, with incorporation or reduction of molecular oxygen
   1.14.19  With oxidation of a pair of donors resulting in the reduction of O2 to two molecules of water
    1.14.19.20
     R07491  Episterol + 2 Ferrocytochrome b5 + Oxygen + 2 H+ <=> 5-Dehydroepisterol + 2 Ferricytochrome b5 + 2 H2O
Orthology
K00227  Delta7-sterol 5-desaturase [EC:1.14.19.20]
Other DBs
RHEA: 46563

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