rde:RD1_3659 metH; methionine synthase (EC:2.1.1.13); K00548 5-methyltetrahydrofolate--homocysteine methyltransferase [EC:2.1.1.13] rde:RD1_3660 metH; methionine synthase (EC:2.1.1.13); K00548 5-methyltetrahydrofolate--homocysteine methyltransferase [EC:2.1.1.13] rde:RD1_1762 metF; 5,10-methylenetetrahydrofolate reductase; K00297 methylenetetrahydrofolate reductase (NADPH) [EC:1.5.1.20] rde:RD1_0689 D-isomer specific 2-hydroxyacid dehydrogenase