preferred_name: Met-enkephalin-Arg-Phe + H2O = L-arginyl-L-phenylalanine + Met-enkephalin
preferred_name_lc: met-enkephalin-arg-phe + h2o = l-arginyl-l-phenylalanine + met-enkephalin
label: Met-enkephalin-Arg-Phe + H2O = L-arginyl-L-phenylalanine + Met-enkephalin
label_lc: met-enkephalin-arg-phe + h2o = l-arginyl-l-phenylalanine + met-enkephalin