# OC Root 2nd 3rd PC Gene/Definition OC.378631 Archaea.32547 Euryarchaeota.37352 cdiv.1730 cdiv:CPM_1928 5,10-methylenetetrahydrofolate reductase; K00297 methylenetetrahydrofolate reductase (NADPH) [EC:1.5.1.20]; K00547 homocysteine S-methyltransferase [EC:2.1.1.10]