Thread: NMR paper Spin-Echo based Diagonal Peak Suppression in Solid-State MAS NMR Homonuclear Chemical Shift Correlation Spectra
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Default Spin-Echo based Diagonal Peak Suppression in Solid-State MAS NMR Homonuclear Chemical Shift Correlation Spectra
Spin-Echo based Diagonal Peak Suppression in Solid-State MAS NMR Homonuclear Chemical Shift Correlation Spectra

Publication date: Available online 28 December 2017
Source:Journal of Magnetic Resonance

Author(s): Kaiyu Wang, Zhiyong Zhang, Xiaoyan Ding, Fang Tian, Yuqing Huang, Zhong Chen, Riqiang Fu

The feasibility of using the spin-echo based diagonal peak suppression method in solid-state MAS NMR homonuclear chemical shift correlation experiments is demonstrated. A complete phase cycling is designed in such a way that in the indirect dimension only the spin diffused signals are evolved, while all signals not involved in polarization transfer are refocused for cancellation. A data processing procedure is further introduced to reconstruct this acquired spectrum into a conventional two-dimensional homonuclear chemical shift correlation spectrum. A uniformly 13C, 15N labeled Fmoc-valine sample and the transmembrane domain of a human protein, LR11 (sorLA), in native Escherichia coli membranes have been used to illustrate the capability of the proposed method in comparison with standard 13C-13C chemical shift correlation experiments.
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