L-threo-tetrahydrobiopterin + 2 NADP(+) <=> 6-pyruvoyl-5,6,7,8-tetrahydropterin + 2 NADPH + 2 H(+)
l-threo-tetrahydrobiopterin + 2 nadp(+) <=> 6-pyruvoyl-5,6,7,8-tetrahydropterin + 2 nadph + 2 h(+)
L-threo-tetrahydrobiopterin + 2 NADP(+) <=> 6-pyruvoyl-5,6,7,8-tetrahydropterin + 2 NADPH + 2 H(+)
l-threo-tetrahydrobiopterin + 2 nadp(+) <=> 6-pyruvoyl-5,6,7,8-tetrahydropterin + 2 nadph + 2 h(+)