N-Acetylaspartylglutamic acid
（重定向自Spaglumic acid）
![](/Images/godic/202502/12/Acetylaspartylglutamic_acid5113.png")
N-Acetylaspartylglutamic acid (N-acetylaspartylglutamate or NAAG) is a peptide neurotransmitter and the third-most-prevalent neurotransmitter in the mammalian nervous system. NAAG consists of N-acetylaspartic acid (NAA) and glutamic acid coupled via a peptide bond.