n Constants: A 500 MHz Proton Nuclear Magnetic Resonance Study", Sauter, N. K., Bednarski, M. D., Wurzburg, B. A., Hanson, J. E., Whitesides, G. M., Skehel, J. 3. and Wiley, D. C., Biochemistry, 1989, 28, 8388-8396. 270. "Lactate Dehydrogenase-Catalyzed Regeneration of NAD from NADH for Use in Enzyme-