PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12857831-3 2003 Here, we analyze the expression of three xanthophyll biosynthetic genes (i.e. beta-carotene hydroxylase [bhy], zeaxanthin epoxidase [zep], and violaxanthin de-epoxidase [vde]) during de-etiolation of seedlings of tobacco (Nicotiana tabacum L. cv Samsun) under different light conditions. Xanthophylls 41-52 violaxanthin de-epoxidase, chloroplastic Nicotiana tabacum 143-168 9624110-1 1998 Violaxanthin de-epoxidase and zeaxanthin epoxidase catalyze the addition and removal of epoxide groups in carotenoids of the xanthophyll cycle in plants. Xanthophylls 125-136 violaxanthin de-epoxidase, chloroplastic Nicotiana tabacum 0-25