ID 1.14.19.53 DE all-trans-retinol 3,4-desaturase. AN CYP27C1. CA all-trans-retinol + 2 H(+) + O2 + 2 reduced [adrenodoxin] = all-trans- CA 3,4-didehydroretinol + 2 H2O + 2 oxidized [adrenodoxin]. CC -!- A cytochrome P450 (heme thiolate) enzyme found in vertebrates. CC -!- The enzyme is also active with retinal and retinoic acid. DR P0DOX0, C27C1_AQUCT; A8WGA0, C27C1_DANRE; Q4G0S4, C27C1_HUMAN; //