Accurate Determination of Order Parameters from 1 H, 15 N Dipolar Couplings in MAS Solid-State NMR Experiments
β Scribed by Chevelkov, Veniamin; Fink, Uwe; Reif, Bernd
- Book ID
- 126881024
- Publisher
- American Chemical Society
- Year
- 2009
- Tongue
- English
- Weight
- 936 KB
- Volume
- 131
- Category
- Article
- ISSN
- 0002-7863
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π SIMILAR VOLUMES
We demonstrate a dipolar-chemical shift correlation technique for sign-sensitive determination of the torsion angle in solid peptides and proteins under magic-angle spinning. The indirect dimension of the experiment is obtained by separate but synchronous evolution of the magnetization under the 15
Order parameters describing conformational exchange processes on the nanosecond to microsecond timescale can be obtained from powder patterns in solid-state NMR (SSNMR) experiments. Extensions of these experiments to magic-angle spinning (MAS) based high-resolution experiments have been demonstrated