(19E)-geissoschizine + NADP(+) <=> 4,21-dehydrogeissoschizine + NADPH
(19e)-geissoschizine + nadp(+) <=> 4,21-dehydrogeissoschizine + nadph
(19E)-geissoschizine + NADP(+) <=> 4,21-dehydrogeissoschizine + NADPH
(19e)-geissoschizine + nadp(+) <=> 4,21-dehydrogeissoschizine + nadph