ID 2.5.1.149 DE lycopene elongase/hydratase (flavuxanthin-forming). CA (1) A + all-trans-lycopene + dimethylallyl diphosphate + H2O = AH2 + CA diphosphate + nonaflavuxanthin. CA (2) A + dimethylallyl diphosphate + H2O + nonaflavuxanthin = AH2 + CA diphosphate + flavuxanthin. CC -!- The enzyme, characterized from the bacterium Corynebacterium CC glutamicum, is bifunctional. CC -!- It catalyzes the elongation of the C40 carotenoid all-trans-lycopene CC by attaching an isoprene unit at C-2, as well as the hydroxylation of CC the new isoprene unit. CC -!- The enzyme acts at both ends of the substrate, forming the C50 CC carotenoid flavuxanthin via the C45 intermediate nonaflavuxanthin. CC cf. EC 2.5.1.150. DR Q8NSP8, CRTEB_CORGL; Q93QX2, CRTEB_CORGT; //