preferred_name: L-lanthionine + hydrogen sulfide + H(+) => 2 L-cysteine
preferred_name_lc: l-lanthionine + hydrogen sulfide + h(+) => 2 l-cysteine
label: L-lanthionine + hydrogen sulfide + H(+) => 2 L-cysteine
label_lc: l-lanthionine + hydrogen sulfide + h(+) => 2 l-cysteine