Zeaxanthin epoxidase
| Zeaxanthin epoxidase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC no. | 1.14.13.90 | ||||||||
| CAS no. | 149718-34-3 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| |||||||||
Zeaxanthin epoxidase (EC 1.14.13.90, Zea-epoxidase) is an enzyme with systematic name zeaxanthin,NAD(P)H:oxygen oxidoreductase. This enzyme catalyses the following chemical reaction
- zeaxanthin + 2 NAD(P)H + 2 H+ + 2 O2 violaxanthin + 2 NAD(P)+ + 2 H2O (overall reaction)
- (1a) zeaxanthin + NAD(P)H + H+ + O2 antheraxanthin + NAD(P)+ + H2O
- (1b) antheraxanthin + NAD(P)H + H+ + O2 violaxanthin + NAD(P)+ + H2O
Zeaxanthin epoxidase is a flavoprotein (FAD) that is active under conditions of low light.