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Updated: Feb 24, 2026

Author Spotlight: Exploring Intrinsically Disordered Protein Dynamics Through NMR Relaxation Experiments
Published on: November 1, 2024
Analytical Description of NMR Relaxation Highlights Correlated Dynamics in Intrinsically Disordered Proteins
Nicola Salvi1, Anton Abyzov1, Martin Blackledge1
1Institut de Biologie Structurale, CNRS, CEA, UGA, Grenoble, France.
Abstract:
The dynamic fluctuations of intrinsically disordered proteins (IDPs) define their function. Although experimental nuclear magnetic resonance (NMR) relaxation reveals the motional complexity of these highly flexible proteins, the absence of physical models describing IDP dynamics hinders their mechanistic interpretation. Combining molecular dynamics simulation and NMR, we introduce a framework in which distinct motions are attributed to local libration, backbone dihedral angle dynamics and longer-range tumbling of one or more peptide planes. This model provides unique insight into segmental organization of dynamics in IDPs and allows us to investigate the presence and extent of the correlated motions that are essential for function.
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