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Methods Mol Biol. 2012;757:129-37. doi: 10.1007/978-1-61779-166-6_10.

An NMR method to study protein-protein interactions.

Author information

1
Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, Japan.

Abstract

Specific interactions between proteins are a fundamental process underlying the various biological events, such as cell-cell contacts, signal transduction, and gene expression. Therefore, the structural investigations of protein-protein interactions provide useful information for understanding these events. We describe an NMR method, termed the cross-saturation (CS) method, to determine the binding sites of protein complexes more precisely than conventional NMR methods. The CS method can determine the binding sites of a protein complex that undergoes fast exchange between the free and the bound states, regardless of the molecular size of the complex.

PMID:
21909911
DOI:
10.1007/978-1-61779-166-6_10
[Indexed for MEDLINE]

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