preferred_name: an S-substituted L-cysteinylglycine + H2O <=> an S-substituted L-cysteine + glycine
preferred_name_lc: an s-substituted l-cysteinylglycine + h2o <=> an s-substituted l-cysteine + glycine
label: an S-substituted L-cysteinylglycine + H2O <=> an S-substituted L-cysteine + glycine
label_lc: an s-substituted l-cysteinylglycine + h2o <=> an s-substituted l-cysteine + glycine