ID 1.14.14.160 DE zealexin A1 synthase. AN CYP71Z18. CA (S)-beta-macrocarpene + 3 O2 + 3 reduced [NADPH--hemoprotein reductase] = CA 4 H(+) + 4 H2O + 3 oxidized [NADPH--hemoprotein reductase] + zealexin A1. CC -!- A cytochrome P450 (heme thiolate) enzyme characterized from maize. CC -!- The enzyme sequentially oxidizes(S)-beta-macrocarpene via alcohol and CC aldehyde intermediates to form zealexin A1, a maize phytoalexin that CC provides biochemical protection against fungal infection. DR B4FVP3, C71Z8_MAIZE; //