. "N-acetyl-L-glutamic acid"^^ . "PSI-MOD"^^ . . "[is_a] MOD:00394 ! acetylated residue;[is_a] MOD:00906 ! modified L-glutamic acid residue;"^^ . . "AcGlu"^^ . "MOD:00053"^^ . "[is_a] MOD:00394 ! acetylated residue;[is_a] MOD:00670 ! N-acylated residue;[is_a] MOD:00906 ! modified L-glutamic acid residue;"^^ .