The Exact Nuclear Overhauser Enhancement: Recent Advances

Author(s)
P. J. Nichols, A. Born, M. A. Henen, D. Strotz, J. Orts, S. Olsson, P. Guntert, C. N. Chi, B. Vogeli
Abstract

Although often depicted as rigid structures, proteins are highly dynamic systems, whose motions are essential to their functions. Despite this, it is difficult to investigate protein dynamics due to the rapid timescale at which they sample their conformational space, leading most NMR-determined structures to represent only an averaged snapshot of the dynamic picture. While NMR relaxation measurements can help to determine local dynamics, it is difficult to detect translational or concerted motion, and only recently have significant advances been made to make it possible to acquire a more holistic representation of the dynamics and structural landscapes of proteins. Here, we briefly revisit our most recent progress in the theory and use of exact nuclear Overhauser enhancements (eNOEs) for the calculation of structural ensembles that describe their conformational space. New developments are primarily targeted at increasing the number and improving the quality of extracted eNOE distance restraints, such that the multi-state structure calculation can be applied to proteins of higher molecular weights. We then review the implications of the exact NOE to the protein dynamics and function of cyclophilin A and the WW domain of Pin1, and finally discuss our current research and future directions.

Organisation(s)
External organisation(s)
University of Colorado, Anschutz Medical Campus, Mansoura University, Eidgenössische Technische Hochschule Zürich, Freie Universität Berlin (FU), Johann Wolfgang Goethe-Universität Frankfurt am Main, Tokyo Metropolitan University, Uppsala University
Journal
Molecules
Volume
22
ISSN
1420-3049
DOI
https://doi.org/10.3390/molecules22071176
Publication date
07-2017
Peer reviewed
Yes
Austrian Fields of Science 2012
106006 Biophysics, 106002 Biochemistry
Keywords
ASJC Scopus subject areas
Drug Discovery, Analytical Chemistry, Chemistry (miscellaneous), Molecular Medicine, Physical and Theoretical Chemistry, Pharmaceutical Science, Organic Chemistry
Portal url
https://ucris.univie.ac.at/portal/en/publications/the-exact-nuclear-overhauser-enhancement-recent-advances(456b2ede-1e03-4d92-9dc7-642f32692e11).html