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  Is protein deuteration beneficial for proton detected solid-state NMR at and above 100 kHz magic-angle spinning?

Cala-De Paepe, D., Stanek, J., Jaudzems, K., Tars, K., Andreas, L. B., & Pintacuda, G. (2017). Is protein deuteration beneficial for proton detected solid-state NMR at and above 100 kHz magic-angle spinning? Solid State Nuclear Magnetic Resonance, 87, 126-136. doi:10.1016/j.ssnmr.2017.07.004.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002D-C8ED-A Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-3504-1
Genre: Journal Article

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Cala-De Paepe, D., Author
Stanek, J., Author
Jaudzems, K., Author
Tars, K., Author
Andreas, L. B.1, Author              
Pintacuda, G., Author
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1Research Group of Solid State NMR Spectroscopy-2, MPI for Biophysical Chemistry, Max Planck Society, ou_2396693              

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Free keywords: Fast magic-angle spinning; Fractional deuteration; Full protonation; Protein assemblies; Proteins; Proton detection; Resolution; Sensitivity; Side-chains; Solid-state nuclear magnetic resonance
 Abstract: 1H-detection in solid-state NMR of proteins has been traditionally combined with deuteration for both resolution and sensitivity reasons, with the optimal level of proton dilution being dependent on MAS rate. Here we present 1H-detected 15N and 13C CP-HSQC spectra on two microcrystalline samples acquired at 60 and 111 kHz MAS and at ultra-high field. We critically compare the benefits of three labeling schemes yielding different levels of proton content in terms of resolution, coherence lifetimes and feasibility of scalar-based 2D correlations under these experimental conditions. We observe unexpectedly high resolution and sensitivity of aromatic resonances in 2D 13C-1H correlation spectra of protonated samples. Ultrafast MAS reduces or even removes the necessity of 1H dilution for high-resolution 1H-detection in biomolecular solid-state NMR. It yields 15N,1H and 13C,1H fingerprint spectra of exceptional resolution for fully protonated samples, with notably superior 1H and 13C lineshapes for side-chain resonances.

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Language(s): eng - English
 Dates: 2017-07-252017-10
 Publication Status: Published in print
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 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.ssnmr.2017.07.004
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Title: Solid State Nuclear Magnetic Resonance
Source Genre: Journal
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Pages: - Volume / Issue: 87 Sequence Number: - Start / End Page: 126 - 136 Identifier: -