| 别名 |
beta-carotene 7′,8’oxygenase, carotenoid cleavage dioxygenase 2, CCD2, CCD4.1, CCD4.3, ZCD, zeaxanthin 7, 8 (7, 8)-cleavage dioxygenase, zeaxanthin 7,8(7′,8′)-cleavage dioxygenase, zeaxanthin 7,8-cleavage dioxygenase |
| Comments |
The enzyme, characterized from the plant Crocus sativus (saffron), acts twice, cleaving 3¦Â-hydroxy-¦Â-cyclocitral off each 3-hydroxy end group. It is part of the zeaxanthin degradation pathway in that plant, leading to the different compounds that impart the color, flavor and aroma of the saffron spice. The enzyme can similarly cleave the 7-8 double bond of other carotenoids with a 3-hydroxy-¦Â-carotenoid end group. Formerly EC 1.14.99.42 and EC 1.14.99.n3. |
