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': 'Largest protein in body is ? \nSelect and explain. \nA. Titin, B. Myosin, C. Actin, D. Troponin', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e.,TitinTitin is a muscle proteinIt connects Z lines with M line in a sarcomereIt is responsible for passive elasticity of a muscleTitin is the third most abundant protein of human body (after myosin and actin)Titin is the largest protein in human body. It has 34350 aminoacids.", 'role': 'assistant'}]