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