5,6,7,8-tetrahydromethanopterin + NADP(+) = 7,8-dihydromethanopterin + NADPH + H(+)
5,6,7,8-tetrahydromethanopterin + nadp(+) = 7,8-dihydromethanopterin + nadph + h(+)
5,6,7,8-tetrahydromethanopterin + NADP(+) = 7,8-dihydromethanopterin + NADPH + H(+)
5,6,7,8-tetrahydromethanopterin + nadp(+) = 7,8-dihydromethanopterin + nadph + h(+)