ID 5.5.1.37 DE catharanthine synthase. CA dehydrosecodine = catharanthine. CC -!- The enzyme, characterized from the plant Catharanthus roseus CC (Madagascar periwinkle), is a carboxylesterase-like cyclase that CC catalyzes a regio- and enantiodivergent [4+2] cycloaddition reaction CC to generate the iboga scaffold of catharanthine. CC -!- cf. EC 5.5.1.38. DR A0A2P1GIW2, CS_CATRO ; //