methanethiol + S-adenosyl-L-methionine = dimethyl sulfide + S-adenosyl-L-homocysteine + H(+)
methanethiol + s-adenosyl-l-methionine = dimethyl sulfide + s-adenosyl-l-homocysteine + h(+)
"methanethiol S-methyltransferase"
"methanethiol s-methyltransferase"