This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Structure and function of protein, Subject name: Biochemistry
[{'content': 'A glycoprotein that regulates folding of proteins that are expoed from the cell is \nSelect and explain. \nA. Mucins, B. Transferrin, C. Calnexin, D. Lectin', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Glycoproteins Calnexin and Calreticulin regulate folding of proteins that are expoed from the cellRef: Harper&;s biochemistry; 30th edition; Chapter 46; Glycoproteins', 'role': 'assistant'}]