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': 'Enzyme which is not regulated by phosphorylation dephosphorylation ? \nSelect and explain. \nA. Glycogen synthase, B. Glycogen phosphorylase, C. Aspaate transcarboxylase, D. HMG CoA reductase', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Aspaate transcarboxylase", 'role': 'assistant'}]