The molecule is a tetrapeptide composed of L-cysteine, L-methionine, L-threonine and L-tyrosine joined in sequence by peptide linkages. It has a role as a metabolite. It derives from a L-cysteine, a L-methionine, a L-threonine and a L-tyrosine.
(2S)-2-[[(2S,3R)-2-[[(2S)-2-[[(2R)-2-amino-3-sulfanylpropanoyl]amino]-4-methylsulfanylbutanoyl]amino]-3-hydroxybutanoyl]amino]-3-(4-hydroxyphenyl)propanoic acid