β-carotene 3-hydroxylase
Names
[ CAS No. ]:
133425-64-6
[ Name ]:
β-carotene 3-hydroxylase
[Synonym ]:
EC 1.14.13.129
β-carotene 3,3'-monooxygenase
CrtZ
Biological Activity
[Description]:
Requires ferredoxin and Fe(II). Also acts on other carotenoids with a β-end group. In some species canthaxanthin is the preferred substrate. Reaction: β-carotene + 2 NADH + 2 H+ + 2 O2 = zeaxanthin + 2 NAD+ + 2 H2O(overall reaction); (1a) β-carotene + NADH + H+ + O2 = β-cryptoxanthin + NAD+ + H2O; (1b) β-cryptoxanthin + NADH + H+ + O2 = zeaxanthin + NAD+ + H2O
Chemical & Physical Properties
No Any Chemical & Physical Properties