(4aS,6R)-4a-hydroxy-L-erythro-5,6,7,8-tetrahydrobiopterin + L-dopa => (6R)-L-erythro-5,6,7,8-tetrahydrobiopterin + L-tyrosine + O2
(4as,6r)-4a-hydroxy-l-erythro-5,6,7,8-tetrahydrobiopterin + l-dopa => (6r)-l-erythro-5,6,7,8-tetrahydrobiopterin + l-tyrosine + o2
(4aS,6R)-4a-hydroxy-L-erythro-5,6,7,8-tetrahydrobiopterin + L-dopa => (6R)-L-erythro-5,6,7,8-tetrahydrobiopterin + L-tyrosine + O2
(4as,6r)-4a-hydroxy-l-erythro-5,6,7,8-tetrahydrobiopterin + l-dopa => (6r)-l-erythro-5,6,7,8-tetrahydrobiopterin + l-tyrosine + o2