Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 7-Day Trial for You or Your Team.

Learn More →

Hydrogen exchange and the dynamic structure of proteins

Hydrogen exchange and the dynamic structure of proteins In native proteins, buried, labile protons undergo isotope exchange with solvent hydrogens, but the kinetics of exchange are markedly slower than in unfolded polypeptides. This indicates that, whereas buried protein atoms are shielded from solvent, the protein fluctuates around the time average structure and occasionally exposes buried sites to solvent. Generally, hydrogen exchange studies are designed to characterize the nature of the fluctuations between conformational substates, to monitor the shift in conformational equilibria among protein substates due to ligand binding or other factors, or to monitor the major cooperative denaturation transition. In this article, we review the recent reports of hydrogen exchange in proteins, focusing on recent advances in methodology, especially with regard to the implications of the results for the mechanism of hydrogen exchange in folded proteins. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Molecular and Cellular Biochemistry Springer Journals

Hydrogen exchange and the dynamic structure of proteins

Loading next page...
 
/lp/springer-journals/hydrogen-exchange-and-the-dynamic-structure-of-proteins-rrnQA8vloy

References (154)

Publisher
Springer Journals
Copyright
Copyright
Subject
Life Sciences; Biochemistry, general; Medical Biochemistry; Oncology; Cardiology
ISSN
0300-8177
eISSN
1573-4919
DOI
10.1007/BF00421225
Publisher site
See Article on Publisher Site

Abstract

In native proteins, buried, labile protons undergo isotope exchange with solvent hydrogens, but the kinetics of exchange are markedly slower than in unfolded polypeptides. This indicates that, whereas buried protein atoms are shielded from solvent, the protein fluctuates around the time average structure and occasionally exposes buried sites to solvent. Generally, hydrogen exchange studies are designed to characterize the nature of the fluctuations between conformational substates, to monitor the shift in conformational equilibria among protein substates due to ligand binding or other factors, or to monitor the major cooperative denaturation transition. In this article, we review the recent reports of hydrogen exchange in proteins, focusing on recent advances in methodology, especially with regard to the implications of the results for the mechanism of hydrogen exchange in folded proteins.

Journal

Molecular and Cellular BiochemistrySpringer Journals

Published: Sep 22, 2004

There are no references for this article.