N2 + (E)-4-coumarate + NADP(+) => (E)-3-diazocoumarate + NADPH
n2 + (e)-4-coumarate + nadp(+) => (e)-3-diazocoumarate + nadph
N2 + (E)-4-coumarate + NADP(+) => (E)-3-diazocoumarate + NADPH
n2 + (e)-4-coumarate + nadp(+) => (e)-3-diazocoumarate + nadph