# OC Root 2nd 3rd PC Gene/Definition OC.249206 Bacteria.347500 Firmicutes.313014 fro.544 fro:AALO17_04970 5,10-methylene-tetrahydrofolate dehydrogenase; K01491 methylenetetrahydrofolate dehydrogenase (NADP+) / methenyltetrahydrofolate cyclohydrolase [EC:1.5.1.5 3.5.4.9]