Does chemical cross-linking with NHS esters reflect the chemical equilibrium of protein-protein noncovalent interactions in solution?

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Does chemical cross-linking with NHS esters reflect the chemical equilibrium of protein-protein noncovalent interactions in solution?

Chemical cross-linking in combination with mass spectrometry has emerged as a powerful tool to study noncovalent protein complexes. Nevertheless, there are still many questions to answer. Does the amount of detected cross-linked complex correlate with the amount of protein complex in solution? In which concentration and affinity range is specific cross-linking possible? To answer these question...

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The dynamics of protein-protein interactions play a central role in various biological processes including the function of multiprotein complexes and the regulation of signal transduction networks. Methods to sense or manipulate such interactions are therefore crucial for studying protein behavior in living cells. The interaction between two proteins can for example be enforced by the use of sm...

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ژورنال

عنوان ژورنال: Journal of the American Society for Mass Spectrometry

سال: 2010

ISSN: 1044-0305,1879-1123

DOI: 10.1016/j.jasms.2010.06.016