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Updated: Aug 30, 2026

Investigating Protein Sequence-structure-dynamics Relationships with Bio3D-web
Published on: July 16, 2017
Covariation of backbone motion throughout a small protein domain
Kristen L Mayer1, Matthew R Earley, Sonia Gupta
1Department of Chemistry, Indiana University, Bloomington, Indiana 47405-0001, USA.
Abstract:
The synchronization (correlation) of conformational fluctuations in folded proteins may influence the rates of enzyme catalysis and ligand binding as well as the stabilities of native proteins and their complexes. However, experimental detection of correlated motions remains difficult. Herein, we present an analysis of the covariation of NMR-derived backbone dynamical parameters among a family of ten mutants of a small protein. Both the spatial restriction and the time scales of backbone motions exhibit a higher degree of covariation than would be expected if the internal motions of each group were independent, providing experimental support for correlated dynamics. Application of this approach to other proteins may reveal dynamical correlations that influence catalysis, ligand-binding and/or protein stability.
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