Ion influence on surface water dynamics and proton exchange at protein surfaces - a unified model for transverse and longitudinal NMR relaxation dispersion

Tadeja Gao,Jean-Pierre Korb,Miha Lukšič,Guillaume Meriguet,Natalie Malikova,Anne-Laure Rollet

Journal of Molecular Liquids（2022）

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摘要

•Unified model of surface water diffusion and proton exchange at protein surfaces.•Model accounts for both longitudinal and transverse NMR relaxation dispersions.•BSA and LZM: ions & strong protein-specific response for surface water dynamics.•Low frequency NMRD reveals no. of water molecules in deep wells on protein surface.•Proton exchange times insensitive to salt ions at concentration studied (0.1M).

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关键词

NMR relaxometry,Water dynamics,Protein,Surface,Proton exchange

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