GO:0008124

4-alpha-hydroxytetrahydrobiopterin dehydratase activity

Details: 
Catalysis of the reaction: (6R)-6-(L-erythro-1,2-dihydroxypropyl)-5,6,7,8-tetrahydro-4a-hydroxypterin = (6R)-6-(L-erythro-1,2-dihydroxypropyl)-7,8-dihydro-6H-pterin + H(2)O. [EC:4.2.1.96, RHEA:11923]
Evidence Code: