Partially-deuterated samples of HET-s(218–289) fibrils: assignment and deuterium isotope effect
Abstract
Fast magic-angle spinning and partial sample deuteration allows direct detection of 1H in solid-state NMR, yielding significant gains in mass sensitivity. In order to further analyze the spectra, 1H detection requires assignment of the 1H resonances. In this work, resonance assignments of backbone HN and Hα are presented for HET-s(218–289) fibrils, based on the existing assignment of Cα, Cβ, C’, and N resonances. The samples used are partially deuterated for higher spectral resolution, and the shifts in resonance frequencies of Cα and Cβ due to the deuterium isotope effect are investigated. It is shown that the deuterium isotope effect can be estimated and used for assigning resonances of deuterated samples in solid-state NMR, based on known resonances of the protonated protein. Show more
Permanent link
https://doi.org/10.3929/ethz-b-000128245Publication status
publishedExternal links
Journal / series
Journal of Biomolecular NMRVolume
Pages / Article No.
Publisher
SpringerSubject
Chemical shift assignment; Deuterated proteins; Deuterium isotope effect; Fibrils; Proton detection; Solid-state NMROrganisational unit
03496 - Meier, Beat H. (emeritus) / Meier, Beat H. (emeritus)
Funding
146757 - NMR studies in the Solid State (SNF)
159707 - NMR studies in the Solid State (SNF)
Notes
It was possible to publish this article open access thanks to a Swiss National Licence with the publisher.More
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