Tags: Enzyme.
Zeaxanthin 78-dioxygenase (EC 1.14.99.42 zeaxanthin 78(7’8′)-cleavage dioxygenase CsZCD) is an enzyme with system name zeaxanthin:oxygen oxidoreductase (78-cleaving). This enzyme catalyses the following chemical reaction zeaxanthin + 2 O2 crocetin dialdehyde + 2 (3S)-3-hydroxycyclocitralZeaxanthin 78-dioxygenase acts twice on zeaxanthin cleaving 3-hydroxycyclocitral off each 3-hydroxy end group.