Abstract
Heteronuclear dipolar recoupling experiments without 1H decoupling based on simple cross polarization are introduced for applications in biological solid-state NMR. It is shown that standard or adiabatic variants of the cross-polarization experiment with irradiation on the low-γ (e.g., 13C, 15N) spins even at modest spinning frequencies enable efficient band-selective or broadband dipolar recoupling without the need for intense 1H decoupling. This facilitates experiments on expensive isotope-labelled protein samples for which sample heating by intense 1H decoupling may lead to sample detoriation. The principle is demonstrated numerically and experimentally on uniformly 13C, 15N-labelled samples of GB1 and fibrils of hIAPP (20–29) from the human islet amyloid labelled on the FGAIL part.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.