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

(+)-epi-isozizaene,reduced-ferredoxin:oxygen oxidoreductase (5-hydroxylating)

(+)-epi-isozizaene + 4 reduced [2Fe-2S] ferredoxin + 4 H+ + 2 O2 = albaflavenone + 4 oxidized [2Fe-2S] ferredoxin + 3 H2O (overall reaction) [RN:R10072];
(1a) (+)-epi-isozizaene + 2 reduced [2Fe-2S] ferredoxin + 2 H+ + O2 = (5S)-albaflavenol + 2 oxidized [2Fe-2S] ferredoxin + H2O [RN:R08851];
(1b) (5S)-albaflavenol + 2 reduced [2Fe-2S] ferredoxin + 2 H+ + O2 = albaflavenone + 2 oxidized [2Fe-2S] ferredoxin + 2 H2O [RN:R08852];
(2a) (+)-epi-isozizaene + 2 reduced [2Fe-2S] ferredoxin + 2 H+ + O2 = (5R)-albaflavenol + 2 oxidized [2Fe-2S] ferredoxin + H2O [RN:R08853];
(2b) (5R)-albaflavenol + 2 reduced [2Fe-2S] ferredoxin + 2 H+ + O2 = albaflavenone + 2 oxidized [2Fe-2S] ferredoxin + 2 H2O [RN:R08854]

R08851 R08852 R08853 R08854 R10072
Reaction

(+)-epi-isozizaene [CPD:C16269];
reduced [2Fe-2S] ferredoxin [CPD:C22150];
H+ [CPD:C00080];
O2 [CPD:C00007];
(5S)-albaflavenol [CPD:C17953];
(5R)-albaflavenol [CPD:C17955]

This cytochrome-P-450 enzyme, from the soil-dwelling bacterium Streptomyces coelicolor A3(2), catalyses two sequential allylic oxidation reactions. The substrate epi-isozizaene, which is formed by the action of EC 4.2.3.37, epi-isozizaene synthase, is first oxidized to yield the epimeric intermediates (5R)-albaflavenol and (5S)-albaflavenol, which can be further oxidized to yield the sesquiterpenoid antibiotic albaflavenone.

EC 1.14.15.39 created 2008 as EC 1.14.13.106, transferred 2021 to EC 1.14.15.39

1  [PMID:18234666]