[NMR paper] Combined H-N Cross-Polarization and Carbonyl Detection NMR Spectroscopy Allow to Record High-Resolution, High-Sensitivity Spectra of Alpha-Synuclein in Bacterial Cells
Combined H-N Cross-Polarization and Carbonyl Detection NMR Spectroscopy Allow to Record High-Resolution, High-Sensitivity Spectra of Alpha-Synuclein in Bacterial Cells
Studies of intrinsically disordered proteins (IDPs) under physiological conditions by conventional NMR methods based on proton detection are severely limited by fast proton amide solvent exchange. Carbon detection has been proposed as a solution to the exchange problem but is hampered by low sensitivity. Here, we present a protocol combining proton-nitrogen cross-polarization and carbonyl detection to record high-resolution...
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10-31-2022 04:08 PM
[NMR paper] High-sensitivity protein solid-state NMR spectroscopy.
High-sensitivity protein solid-state NMR spectroscopy.
Related Articles High-sensitivity protein solid-state NMR spectroscopy.
Curr Opin Struct Biol. 2019 Apr 25;:
Authors: Mandala VS, Hong M
Abstract
The sensitivity of solid-state nuclear magnetic resonance (SSNMR) spectroscopy for structural biology is significantly increased by 1H detection under fast magic-angle spinning (MAS) and by dynamic nuclear polarization (DNP) from electron spins to nuclear spins. The former allows studies of the structure and dynamics of small...
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04-30-2019 03:58 PM
[NMR paper] High-Sensitivity Rheo-NMR Spectroscopy for Protein Studies.
High-Sensitivity Rheo-NMR Spectroscopy for Protein Studies.
High-Sensitivity Rheo-NMR Spectroscopy for Protein Studies.
Anal Chem. 2017 Jun 30;:
Authors: Morimoto D, Walinda E, Iwakawa N, Nishizawa M, Kawata Y, Yamamoto A, Shirakawa M, Scheler U, Sugase K
Abstract
Shear stress can induce structural deformation of proteins, which might result in aggregate formation. Rheo-NMR spectroscopy has the potential to monitor structural changes in proteins under shear stress at the atomic level; however, existing Rheo-NMR methodologies...
Practical aspects of high-sensitivity multidimensional 13C MAS NMR spectroscopy of perdeuterated proteins
Practical aspects of high-sensitivity multidimensional 13C MAS NMR spectroscopy of perdeuterated proteins
April 2012
Publication year: 2012
Source:Journal of Magnetic Resonance, Volume 217</br>
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The double nucleus enhanced recoupling (DONER) experiment employs simultaneous irradiation of protons and deuterons to promote spin diffusion processes in a perdeuterated protein. This results in 4–5times higher sensitivity in 2D 13C–13C correlation experiments as compared to PDSD . Here, a quantitative comparison of PDSD, 1H-DARR, 2H-DARR, and 1H+ 2H DONER has been...
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02-03-2013 10:13 AM
Practical Aspects of High-Sensitivity Multidimensional 13C MAS NMR Spectroscopy of Perdeuterated Proteins
Practical Aspects of High-Sensitivity Multidimensional 13C MAS NMR Spectroscopy of Perdeuterated Proteins
Publication year: 2012
Source:Journal of Magnetic Resonance</br>
Ümit Akbey, Barth-Jan van Rossum, Hartmut Oschkinat</br>
The double nucleus enhanced recoupling (DONER) experiment employs simultaneous irradiation of protons and deuterons to promote spin diffusion processes in a perdeuterated protein. This results in 4-5 times higher sensitivity in 2D 13C-13C correlation experiments as compared to PDSD. Here, a quantitative comparison of PDSD, 1H-DARR, 2H-DARR, and...
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03-09-2012 09:16 AM
Practical Aspects of High-Sensitivity MultidimensionalC MAS NMR Spectroscopy of Perdeuterated Proteins
Practical Aspects of High-Sensitivity MultidimensionalC MAS NMR Spectroscopy of Perdeuterated Proteins
Publication year: 2012
Source: Journal of Magnetic Resonance, Available online 1 March 2012</br>
Ümit*Akbey, Barth-Jan*van Rossum, Hartmut*Oschkinat</br>
Thedouble nucleus enhanced recoupling(DONER) experiment employs simultaneous irradiation of protons and deuterons to promote spin diffusion processes in a perdeuterated protein. This results in 4-5 times higher sensitivity in 2DC-C correlation experiments as compared to PDSD.Here, a quantitative comparison of PDSD,H-DARR,H-DARR,...
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03-01-2012 11:03 PM
High resolution NMR spectroscopy of nanocrystalline proteins at ultra-high magnetic field
High resolution NMR spectroscopy of nanocrystalline proteins at ultra-high magnetic field
Abstract Magic-angle spinning (MAS) solid-state NMR (SSNMR) spectroscopy of uniformly-13C,15N labeled protein samples provides insight into atomic-resolution chemistry and structure. Data collection efficiency has advanced remarkably in the last decade; however, the study of larger proteins is still challenged by relatively low resolution in comparison to solution NMR. In this study, we present a systematic analysis of SSNMR protein spectra acquired at 11.7, 17.6 and 21.1 Tesla (1H frequencies of...