The molecule is a tetrapeptide composed of L-alanyl, L-asparagyl, L-glutamyl, and L-serine residues joined in sequence. It has a role as a metabolite. It derives from a L-alanine, a L-asparagine, a L-glutamine and a L-serine.
(2S)-2-[[(2S)-5-amino-2-[[(2S)-4-amino-2-[[(2S)-2-aminopropanoyl]amino]-4-oxobutanoyl]amino]-5-oxopentanoyl]amino]-3-hydroxypropanoic acid