Computing, Analyzing, and Comparing the Radius of Gyration and Hydrodynamic Radius in Conformational Ensembles of Intrinsically Disordered Proteins

Mustapha Carab Ahmed, Ramon Crehuet, Kresten Lindorff-Larsen

Publikation: Bidrag til bog/antologi/rapportBidrag til bog/antologiForskningpeer review

23 Citationer (Scopus)

Abstract

The level of compaction of an intrinsically disordered protein may affect both its physical and biological properties, and can be probed via different types of biophysical experiments. Small-angle X-ray scattering (SAXS) probe the radius of gyration (Rg) whereas pulsed-field-gradient nuclear magnetic resonance (NMR) diffusion, fluorescence correlation spectroscopy, and dynamic light scattering experiments can be used to determine the hydrodynamic radius (Rh). Here we show how to calculate Rg and Rh from a computationally generated conformational ensemble of an intrinsically disordered protein. We further describe how to use a Bayesian/Maximum Entropy procedure to integrate data from SAXS and NMR diffusion experiments, so as to derive conformational ensembles in agreement with those experiments.

OriginalsprogEngelsk
TitelIntrinsically Disordered Proteins : Methods and Protocols
RedaktørerBirthe B. Kragelund, Karen Skriver
Antal sider17
ForlagHumana Press
Publikationsdato2020
Sider429-445
Kapitel21
ISBN (Trykt)978-1-0716-0523-3
ISBN (Elektronisk)978-1-0716-0524-0
DOI
StatusUdgivet - 2020
NavnMethods in Molecular Biology
Vol/bind2141
ISSN1064-3745

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