4-alpha-hydroxytetrahydrobiopterin dehydratase activity
4-alpha-hydroxytetrahydrobiopterin dehydratase activity
(6R)-6-(L-erythro-1,2-dihydroxypropyl)-5,6,7,8-tetrahydro-4a-hydroxypterin hydro-lyase [(6R)-6-(L-erythro-1,2-dihydroxypropyl)-7,8-dihydro-6H-pterin-forming]
(6r)-6-(l-erythro-1,2-dihydroxypropyl)-5,6,7,8-tetrahydro-4a-hydroxypterin hydro-lyase [(6r)-6-(l-erythro-1,2-dihydroxypropyl)-7,8-dihydro-6h-pterin-forming]