ID 2.1.1.10 DE homocysteine S-methyltransferase. CA L-homocysteine + S-methyl-L-methionine = H(+) + 2 L-methionine. CC -!- The enzyme uses S-adenosyl-L-methionine as methyl donor less actively CC than S-methyl-L-methionine. DR Q9H2M3, BHMT2_HUMAN; Q91WS4, BHMT2_MOUSE; Q5RF32, BHMT2_PONAB; DR Q68FT5, BHMT2_RAT ; Q9SDL7, HMT1_ARATH ; A4ZGQ8, HMT1_BRAOT ; DR Q9FUN0, HMT1_MAIZE ; Q9M1W4, HMT2_ARATH ; Q9FUM9, HMT2_MAIZE ; DR Q8LAX0, HMT3_ARATH ; Q9FUM8, HMT3_MAIZE ; Q9FUM7, HMT4_MAIZE ; DR O31463, HMT_BACSU ; Q12525, MHT1_YEAST ; Q47690, MMUM_ECOLI ; DR Q08985, SAM4_YEAST ; O06745, YITJ_BACSU ; //