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Old 11-19-2010, 08:32 PM
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Default NMR relaxation studies of the role of conformational entropy in protein stability and

NMR relaxation studies of the role of conformational entropy in protein stability and ligand binding.

Related Articles NMR relaxation studies of the role of conformational entropy in protein stability and ligand binding.

Acc Chem Res. 2001 May;34(5):379-88

Authors: Stone MJ

Recent advances in the measurement and analysis of protein NMR relaxation data have made it possible to characterize the dynamical properties of many backbone and side chain groups. With certain caveats, changes in flexibility that occur upon ligand binding, mutation, or changes in sample conditions can be interpreted in terms of contributions to conformational entropy. Backbone and side chain flexibility can either decrease or increase upon ligand binding. Decreases are often associated with "enthalpy-entropy compensation" and "induced fit" binding, whereas increases in conformational entropy can contribute to stabilization of complexes. In certain cases, conformational entropy appears to play a role in cooperative binding and enzyme catalysis. In addition, variations in conformational entropy and heat capacity may both be important in stabilizing the folded structures of proteins.

PMID: 11352716 [PubMed - indexed for MEDLINE]



Source: PubMed
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