preferred_name: S-methylmercury-L-cysteine(out) + L-methionine(in) => S-methylmercury-L-cysteine(in) + L-methionine(out)
preferred_name_lc: s-methylmercury-l-cysteine(out) + l-methionine(in) => s-methylmercury-l-cysteine(in) + l-methionine(out)
label: S-methylmercury-L-cysteine(out) + L-methionine(in) => S-methylmercury-L-cysteine(in) + L-methionine(out)
label_lc: s-methylmercury-l-cysteine(out) + l-methionine(in) => s-methylmercury-l-cysteine(in) + l-methionine(out)