label: S-methyl-L-cysteinyl-[protein] + S-adenosyl-L-homocysteine + H(+) => L-cysteinyl-[protein] + S-adenosyl-L-methionine
label_lc: s-methyl-l-cysteinyl-[protein] + s-adenosyl-l-homocysteine + h(+) => l-cysteinyl-[protein] + s-adenosyl-l-methionine