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: Physiology
[{'content': 'Which of the following is not a sarcolemal protein \nSelect and explain. \nA. Sarcoglycan, B. Dystrophin, C. Dystroglycan, D. Perlecan', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Caplin, dystrophin, dysfelin, dystroglycan, sacroglycan, caveoli & integrins are sacrolemmal proteins. Where as perlecan is a large multidomain proteoglycan, which is synthesised by both vascular endothelium and smooth muscle cells and deposited in extra cellular matrix.', 'role': 'assistant'}]