This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Biochemistry
[{'content': 'In glutathione which amino acid is reducing agent? \nSelect and explain. \nA. Glutamic acid, B. Cysteine, C. Glycine, D. Alanine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: -Glutathione is a tripeptide (Gamma Glutamic acid +Cysteine + Glycine)- Gamma glutamyl cysteinyl Glycine-Atypical peptide bond is present between Gamma Glutamic acid and cysteine.', 'role': 'assistant'}]