3.6.1.67 6-hydroxymethyl-dihydropterin diphosphate biosynthesis 6-hydroxymethyl-dihydropterin diphosphate biosynthesis - - 3.6.1.67 6-hydroxymethyl-dihydropterin diphosphate biosynthesis I - - PWY-6147 3.6.1.67 Folate biosynthesis - 00790 - 3.6.1.67 Metabolic pathways - 01100 -