REACTION: R03677
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Entry
R03677 Reaction
Definition
Ergosterol + hn <=> Vitamin D2
Equation
C01694
+
C00205
<=>
C05441
Comment
Ultraviolet light (UV)
non-enzymatic
Reaction class
RC00905
C01694_C05441
Pathway
rn00100
Steroid biosynthesis
rn01100
Metabolic pathways
rn01110
Biosynthesis of secondary metabolites
Module
M00102
Ergocalciferol biosynthesis, FPP => ergosterol/ergocalciferol
Other DBs
RHEA:
33830
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