preferred_name: 4-aminobutanoate + L-glutamate => 4-(gamma-L-glutamylamino)butanoate + H2O
preferred_name_lc: 4-aminobutanoate + l-glutamate => 4-(gamma-l-glutamylamino)butanoate + h2o
label: 4-aminobutanoate + L-glutamate => 4-(gamma-L-glutamylamino)butanoate + H2O
label_lc: 4-aminobutanoate + l-glutamate => 4-(gamma-l-glutamylamino)butanoate + h2o