True about glutathione is
Glutathione -tripeptide-also called gamma-glutamyl cysteinyl glycine. It consists of 3amino acids glutamic acid, glycine, &cystein. It is produced from miester cycle (gamma-glutamyl cycle)catalysed by gamma-glutamyl transferase.Ref: DM Vasudevan - Textbook of Biochemistry for Medical Students, 7th edition, page no: 198
4 amino acids
Gamma peptide
Alpha peptide
3 amino acids
Metabolism of protein and amino acid