preferred_name: Met-enkephalin + H2O => L-phenylalanyl-L-methionine + L-tyrosylglycylglycine
preferred_name_lc: met-enkephalin + h2o => l-phenylalanyl-l-methionine + l-tyrosylglycylglycine
label: Met-enkephalin + H2O => L-phenylalanyl-L-methionine + L-tyrosylglycylglycine
label_lc: met-enkephalin + h2o => l-phenylalanyl-l-methionine + l-tyrosylglycylglycine