dimethylsulfonioacetate + L-homocysteine = (methylsulfanyl)acetate + L-methionine + H(+)
dimethylsulfonioacetate + l-homocysteine = (methylsulfanyl)acetate + l-methionine + h(+)
"thetin--homocysteine S-methyltransferase"
"thetin--homocysteine s-methyltransferase"