5,10-methenyl-5,6,7,8-tetrahydromethanopterin + NADH => 5,10-methylenetetrahydromethanopterin + NAD(+)
5,10-methenyl-5,6,7,8-tetrahydromethanopterin + nadh => 5,10-methylenetetrahydromethanopterin + nad(+)
5,10-methenyl-5,6,7,8-tetrahydromethanopterin + NADH => 5,10-methylenetetrahydromethanopterin + NAD(+)
5,10-methenyl-5,6,7,8-tetrahydromethanopterin + nadh => 5,10-methylenetetrahydromethanopterin + nad(+)