>tr|G2WF48|G2WF48_YEASK 4a-hydroxytetrahydrobiopterin dehydratase OS=Saccharomyces cerevisiae GN=K7_YHL018W MHNKIVRIASSALTGGKLLEKLKPLTRWEVQWDPNKTKCLGITREVTFKDYETTWAFLTR VSMRSHLWGHHPLIHTSYTWVKLELHTHDIDPKDGAHSQLSDIDVRMAKRIDSYIDEMTT