# OC Root 2nd 3rd PC Gene/Definition OC.249210 Bacteria.347521 Chlorobi.3040 ial.1783 ial:IALB_1808 folD; 5,10-Methylene-tetrahydrofolate dehydrogenase; K01491 methylenetetrahydrofolate dehydrogenase (NADP+) / methenyltetrahydrofolate cyclohydrolase [EC:1.5.1.5 3.5.4.9]