Vitamin-D Metabolism

Pathway ID: SIGNOR-VDM

Description: Vitamin D can be either be obtained from nutrition or synthesised by our body in a reaction that requires Ultraviolet radiation. Ultraviolet radiation results in the conversion of 7-dehydrocholesterol to pre–vitamin D, which isomerizes to vitamin D in the skin. Vitamin D–binding protein transports vitamin D to the liver, where it undergoes 25-hydroxylation by CYP2R1. CYP27B1 further hydroxylates 25-hydroxyvitamin D, resulting in the formation of the active hormone 1,25-dihydroxyvitamin D.

Curated by: Livia Perfetto

13 Seed Entities

Organism:
Name Primary ID
CYP2R1 Q6VVX0
Food intake SIGNOR-PH152
GC P02774
propan-2-ol CHEBI:17824
vitamin D CHEBI:27300
CYP24A1 Q07973
calciol CHEBI:28940
calcitetrol CHEBI:47799
cholesta-5,7-dien-3beta-ol CHEBI:17759
UVB radiation SIGNOR-ST17
calcidiol CHEBI:17933
calcitriol CHEBI:17823
CYP27B1 O15528