Impact of magnetic field strength on resolution and sensitivity of proton resonances in biological solids.
J. Phys. Chem. C. 124, 22631-22637 (2020)
Sensitivity and resolution together determine the quality of NMR spectra in biological solids. Higher magic angle spinning frequencies yield a more efficient suppression of the coupling network and enable atomic-level investigations of protonated protein samples. On the other hand, truncation effects induced by higher magnetic fields have an impact on the achievable sensitivity and resolution. In this work, we address the question of how the proton dipolar coupling network affects the magnetic field strength-dependent gains in sensitivity and resolution. We find that-beyond the canonical B-0(3/2) dependence-an additional factor of 2 in sensitivity can be achieved for residues embedded in the core of the protein, when the static magnetic field induces a transition from the strong- to the weak-coupling limit. The experiments are carried out using a selectively methyl-protonated ((13)CH3) alpha-spectrin SH3 sample, at magnetic field strengths of 11.75 T (H-1 Larmor frequency of 500 MHz) and 23.5 T (H-1 Larmor frequency of 1 GHz).
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
State Nmr-spectroscopy; 100 Khz; Proteins; Simulation; H-1
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2020
Prepublished im Jahr
HGF-Berichtsjahr
2020
ISSN (print) / ISBN
1932-7447
e-ISSN
1932-7455
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 124,
Heft: 41,
Seiten: 22631-22637
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
American Chemical Society (ACS)
Verlagsort
Washington, DC
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30203 - Molecular Targets and Therapies
Forschungsfeld(er)
Enabling and Novel Technologies
PSP-Element(e)
G-503090-001
Förderungen
project "e-Infrastruktura CZ" (e-INFRA) within the program Projects of Large Research, Development and Innovations Infrastructures
EU access project iNext
European Research Council (ERC)
Czech Science Foundation
CNRS
Center for Integrated Protein Science Munich (CIPS-M)
Deutsche Forschungsgemeinschaft (DFG)
Helmholtz-Gemeinschaft
German Research Foundation, DFG
Copyright
Erfassungsdatum
2020-12-08