Oxidoreductases;
Acting on paired donors, with incorporation or reduction of molecular oxygen;
With reduced iron-sulfur protein as one donor, and incorporation of one atom of oxygen into the other donor
BRITE hierarchy

beta-carotene,reduced ferredoxin [iron-sulfur] cluster:oxygen 3-oxidoreductase

beta-carotene + 4 reduced ferredoxin [iron-sulfur] cluster + 2 H+ + 2 O2 = zeaxanthin + 4 oxidized ferredoxin [iron-sulfur] cluster + 2 H2O (overall reaction) [RN:R09747];
(1a) beta-carotene + 2 reduced ferredoxin [iron-sulfur] cluster + H+ + O2 = beta-cryptoxanthin + 2 oxidized ferredoxin [iron-sulfur] cluster + H2O [RN:R07558];
(1b) beta-cryptoxanthin + 2 reduced ferredoxin [iron-sulfur] cluster + H+ + O2 = zeaxanthin + 2 oxidized ferredoxin [iron-sulfur] cluster + H2O [RN:R07559]

R07558 R07559 R09747;
(other) R07530 R07561 R07562 R07568 R07569 R07570 R07572 R07851
Reaction

beta-carotene [CPD:C02094];
reduced ferredoxin [iron-sulfur] cluster [CPD:C00138];
H+ [CPD:C00080];
O2 [CPD:C00007];
beta-cryptoxanthin [CPD:C08591]

Requires ferredoxin and iron(II). Also acts on other carotenoids with a beta-end group. In some species canthaxanthin is the preferred substrate.

EC 1.14.15.24 created 2011 as EC 1.14.13.129, transferred 2017 to EC 1.14.15.24

1  [PMID:8798688]

2  [PMID:9045623]

3  [PMID:9523693]

4  [PMID:9555077]

5  [PMID:10524195]

6  [PMID:12591618]

7  [PMID:16614859]