Status Description Organism Genes References
beta-carotene hydroxylase Acaryochloris marina crtR
beta-carotene hydroxylase Arthrospira platensis crtR
beta-carotene hydroxylase Anabaena circinalis GL84-916
beta carotene hydroxylase Croceibacter atlanticus GHTE-191
beta-carotene hydroxylase Chryseobacterium gleum crtZ
beta-carotene hydroxylase Cytophaga hutchinsonii crtZ
beta-carotene hydroxylase Erythrobacter litoralis GHLE-528
beta-carotene hydroxylase Erythrobacter litoralis GHLE-680
beta-carotene hydroxylase Flavobacteria bacterium BAL38 G116Y-202
beta-carotene hydroxylase Flavobacteriales bacterium ALC-1 G118W-2800