ID 5.2.1.13 DE prolycopene isomerase. AN carotene cis-trans isomerase. AN carotene isomerase. AN carotenoid isomerase. AN CRTISO. CA 7,7',9,9'-tetra-cis-lycopene = all-trans-lycopene. CC -!- The enzyme is involved in carotenoid biosynthesis. DR Q52QW3, CRTS1_ONCHC; Q52QW2, CRTS2_ONCHC; Q9M9Y8, CRTSO_ARATH; DR Q2VEX9, CRTSO_DAUCA; Q8S4R4, CRTSO_SOLLC; //