Which of the following enzymes require NAD as cofactor?: (A) Citrate Synthase, (B) Isocitrate Dehydrogenase, (C) a-Ketoglutarate dehydrogenase, (D) Succinate Thiokinase
Answer is C. a-Ketoglutarate dehydrogenase REF: Harper 27th ed p. 496 NAD is cofactor in: Lactate dehydrogenase Pyruvate dehydrogenase Alpha ketoglutrate dehydrogenase