1.3.1.75 protochlorophyllide a + NADP+ = 3,8-divinyl protochlorophyllide a + NADPH + H+ also reduces divinyl protochlorophyllide to protochlorophyllide in some species, providing an alternative pathway - 1.3.1.75 protochlorophyllide a + NADP+ = 3,8-divinyl protochlorophyllide a + NADPH + H+ [4-vinyl]chlorophyllide a reductase and [4-vinyl]protochlorophyllide a reductase are 2 different enzymes in Cucumis sativus 639379