L-methionine + S-adenosyl-L-methionine <=> S-methyl-L-methionine + S-adenosyl-L-homocysteine
l-methionine + s-adenosyl-l-methionine <=> s-methyl-l-methionine + s-adenosyl-l-homocysteine
L-methionine + S-adenosyl-L-methionine <=> S-methyl-L-methionine + S-adenosyl-L-homocysteine
l-methionine + s-adenosyl-l-methionine <=> s-methyl-l-methionine + s-adenosyl-l-homocysteine