| Literature DB >> 16132820 |
Anja Böckmann1, Michel Juy, Emmanuel Bettler, Lyndon Emsley, Anne Galinier, François Penin, Anne Lesage.
Abstract
We report site-resolved observation of hydrogen exchange in the micro-crystalline protein Crh. Our approach is based on the use of proton T2' -selective 1H-13C-13C correlation spectra for site-specific assignments of carbons nearby labile protein protons. We compare the proton T2' selective scheme to frequency selective water observation in deuterated proteins, and discuss the impacts of deuteration on 13C linewidths in Crh. We observe that in micro-crystalline proteins, solvent accessible hydroxyl and amino protons show comparable exchange rates with water protons as for proteins in solution, and that structural constraints, such as hydrogen bonding or solvent accessibility, more significantly reduce exchange rates.Entities:
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Year: 2005 PMID: 16132820 DOI: 10.1007/s10858-005-8073-y
Source DB: PubMed Journal: J Biomol NMR ISSN: 0925-2738 Impact factor: 2.835