preferred_name: glycyl-L-methionine + H2O => L-methionine + glycine
preferred_name_lc: glycyl-l-methionine + h2o => l-methionine + glycine
label: glycyl-L-methionine + H2O => L-methionine + glycine
label_lc: glycyl-l-methionine + h2o => l-methionine + glycine