Abstract
The combination of high-resolution NMR spectroscopy with pressure perturbation, known as variable-pressure NMR spectroscopy or simply high pressure NMR spectroscopy, is a relatively recent accomplishment, but is a technique expanding rapidly with high promise in future. The importance of the method is that it allows, for the first time in history, a systematic means of detecting and analyzing the structures and thermodynamic stability of high-energy sub-states in proteins. High-energy sub-states have been only vaguely known so far, as normally their populations are too low to be detected by conventional spectroscopic techniques including NMR spectroscopy. By now, however, high pressure NMR spectroscopy has established unequivocally that high-energy conformers are universally present in proteins in equilibrium with their stable folded counterparts. This chapter describes briefly the techniques of high pressure NMR spectroscopy and its unique and novel aspects as a method to explore protein structure in its high-energy paradigm with illustrative examples. It is now well established that high pressure NMR spectroscopy is a method to study intrinsic fluctuations of proteins, rather than those forced by pressure, by detecting structural changes amplified by pressure. Extension of the method to other bio-macromolecular systems is considered fairly straightforward.
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Akasaka, K. (2015). High Pressure NMR Spectroscopy. In: Akasaka, K., Matsuki, H. (eds) High Pressure Bioscience. Subcellular Biochemistry, vol 72. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-9918-8_33
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DOI: https://doi.org/10.1007/978-94-017-9918-8_33
Publisher Name: Springer, Dordrecht
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