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Xue, K. ; Sarkar, R. ; Tosner, Z.* ; Lalli, D.* ; Motz, C.* ; Koch, B.* ; Pintacuda, G.* ; Reif, B.

MAS dependent sensitivity of different isotopomers in selectively methyl protonated protein samples in solid state NMR.

J. Biomol. NMR 73, 625-631 (2019)
Postprint DOI PMC
Open Access Green
Sensitivity and resolution together determine the quality of NMR spectra in biological solids. For high-resolution structure determination with solid-state NMR, proton-detection emerged as an attractive strategy in the last few years. Recent progress in probe technology has extended the range of available MAS frequencies up to above 100 kHz, enabling the detection of resolved resonances from sidechain protons, which are important reporters of structure. Here we characterise the interplay between MAS frequency in the newly available range of 70-110 kHz and proton content on the spectral quality obtainable on a 1 GHz spectrometer for methyl resonances. Variable degrees of proton densities are tested on microcrystalline samples of the alpha-spectrin SH3 domain with selectively protonated methyl isotopomers (CH3, CH2D, CHD2) in a perdeuterated matrix. The experimental results are supported by simulations that allow the prediction of the sensitivity outside this experimental frequency window. Our results facilitate the selection of the appropriate labelling scheme at a given MAS rotation frequency.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Solid State Nmr ; Magic Angle Spinning (mas) ; Selective Deuteration ; Ch3 Labelling ; Methyl Isotopomers ; Microcrystalline Proteins; High-resolution; 100 Khz; Perdeuterated Proteins; Resonance Assignment; Spectroscopy; Spectra; Enhancement
Sprache englisch
Veröffentlichungsjahr 2019
HGF-Berichtsjahr 2019
ISSN (print) / ISBN 0925-2738
e-ISSN 1573-5001
Zeitschrift Journal of Biomolecular NMR
Quellenangaben Band: 73, Heft: 10-11, Seiten: 625-631 Artikelnummer: , Supplement: ,
Verlag Springer
Verlagsort Van Godewijckstraat 30, 3311 Gz Dordrecht, Netherlands
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Structural Biology (STB)
POF Topic(s) 30203 - Molecular Targets and Therapies
Forschungsfeld(er) Enabling and Novel Technologies
PSP-Element(e) G-503090-001
DOI 10.1007/s10858-019-00274-0
WOS ID WOS:000496754200010
Scopus ID 85073809905
PubMed ID 31515660
Erfassungsdatum 2019-09-26
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