CCD4 — Brassica oleracea

Summary

BoCCD4 (BOLC102_C03P087870.1) on cabbage chromosome 3 encodes a protein with 9-cis-epoxycarotenoid dioxygenase activity and carotenoid dioxygenase activity, belonging to the Carotenoid_Oase family. The gene is associated with carotenoid metabolism, including beta-carotene and lycopene anabolism and breakdown, as well as abscisic acid, sucrose, chlorophyll and xanthophyll anabolism. It has been linked to head development, anther development, fruit ripening, chloroplast organization and mRNA modification. Associations with flower and petal color, carotenoid and chlorophyll content, chloroplast development, leaf senescence carotenoid turnover, seed beta-carotene content, and apocarotenoid signaling have been reported. The protein localizes to the chloroplast stroma, cytosol and nucleus. Studies of related genes in other species link the family to carotenoid degradation, apocarotenoid glycoside biosynthesis and chloroplast RNA editing.