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
Rossman flod associated NADH domain is found in 
Select and explain. 
A. Pyruvate dehydrogenase, B. Lactate dehydrogenase, C. Acetyl coA dehyrogenase, D. Isocitrate dehydrogenase
B: Lactate dehydrogenase
Answer: B: Lactate dehydrogenase 
Explanation: Rossmann fold is seen in family of oxidoreductases that shares a common N-terminal NAD(P)+-D binding domain Lactate dehydrogenase Alcohol dehydrogenase Glyceraldehyde -3-phosphate dehydrogenase Malate dehydrogenase D-glycerate dehydrogenase 6-phosphogluconate dehydrogenase Formate dehydrogenase Reference: Harpers illustrated Biochemistry 31st edition pg 37