ID 1.7.1.14 DE nitric oxide reductase [NAD(P)(+), nitrous oxide-forming]. AN cytochrome P450nor. AN fungal nitric oxide reductase. AN NOR. CA (1) H2O + NAD(+) + nitrous oxide = H(+) + NADH + 2 nitric oxide. CA (2) H2O + NADP(+) + nitrous oxide = H(+) + NADPH + 2 nitric oxide. CC -!- The enzyme from Fusarium oxysporum utilizes only NADH, but the CC isozyme from Trichosporon cutaneum utilizes both NADH and NADPH. CC -!- The electron transfer from NAD(P)H to heme occurs directly, CC not requiring flavin or other redox cofactors. DR P23295, NOR_FUSOX ; //