The molecule is a tetrapeptide composed of L-arginine, L-lysine, L-cysteine, and glycine joined in sequence by peptide linkages. It has a role as a metabolite. It derives from a L-arginine, a L-lysine, a L-cysteine and a glycine.
2-[[(2R)-2-[[(2S)-6-amino-2-[[(2S)-2-amino-5-(diaminomethylideneamino)pentanoyl]amino]hexanoyl]amino]-3-sulfanylpropanoyl]amino]acetic acid