preferred_name: Se-methyl-L-selenocysteine + L-methionine + H(+) => S-methyl-L-methionine + L-selenocysteine
preferred_name_lc: se-methyl-l-selenocysteine + l-methionine + h(+) => s-methyl-l-methionine + l-selenocysteine
label: Se-methyl-L-selenocysteine + L-methionine + H(+) => S-methyl-L-methionine + L-selenocysteine
label_lc: se-methyl-l-selenocysteine + l-methionine + h(+) => s-methyl-l-methionine + l-selenocysteine