KEGG Orthology (KO) [BR:ko00001]
09100 Metabolism
09103 Lipid metabolism
00100 Steroid biosynthesis
K07419 CYP2R1; vitamin D 25-hydroxylase
09180 Brite Hierarchies
09181 Protein families: metabolism
00199 Cytochrome P450
K07419 CYP2R1; vitamin D 25-hydroxylase
Enzymes [BR:ko01000]
1. Oxidoreductases
1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen
1.14.14 With reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen into the other donor
1.14.14.24 vitamin D 25-hydroxylase
K07419 CYP2R1; vitamin D 25-hydroxylase
Cytochrome P450 [BR:ko00199]
Cytochrome P450, animal type
CYP2 family
K07419 CYP2R1; vitamin D 25-hydroxylase
vitamin D 25-hydroxylase;
vitamin D2 25-hydroxylase;
vitamin D3 25-hydroxylase;
CYP2R1
Class
Oxidoreductases;
Acting on paired donors, with incorporation or reduction of molecular oxygen;
With reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen into the other donor
A microsomal enzyme isolated from human and mouse liver that bioactivates vitamin D3. While multiple isoforms (CYP27A1, CYP2J2/3, CYP3A4, CYP2D25 and CYP2C11) are able to catalyse the reaction in vitro, only CYP2R1 is thought to catalyse the reaction in humans in vivo [4]. The direct electron donor to the enzyme is EC 1.6.2.4, NADPH---hemoprotein reductase.
History
EC 1.14.14.24 created 2012 as EC 1.14.13.159, transferred 2016 to EC 1.14.14.24
Enzymatic reactions [BR:br08201]
1. Oxidoreductase reactions
1.14 Acting on paired donors, with incorporation or reduction of molecular oxygen
1.14.14 With reduced flavin or flavoprotein as one donor, and incorporation of one atom of oxygen into the other donor
1.14.14.24
R03611 Calcidiol + [Oxidized NADPH---hemoprotein reductase] + H2O <=> Vitamin D3 + [Reduced NADPH---hemoprotein reductase] + Oxygen