The dynamics of methyl-bearing side chains in proteins were probed by ^(13)C relaxation measurements of a number of ^(13)C magnetization modes in selectively ^(13)CH(3)-labeled methyl groups of proteins. We first show how ^(13)C magnetization modes in a ^(13)CH(3) spin-system can be isolated using acute-angle ¹H radio-frequency pulses. The parameters of methyl-axis dynamics, a measure of methyl-axis ordering (S(axis)²) and the correlation time of fast local methyl-axis motions (?(f)), derived...
NMR Relaxation and Molecular Dynamics Simulations of Side Chain Dynamics in Proteins
NMR Relaxation and Molecular Dynamics Simulations of Side Chain Dynamics in Proteins
Publication date: 2 February 2018
Source:Biophysical Journal, Volume 114, Issue 3, Supplement 1</br>
Author(s): Falk Hoffmann, Mengjun Xue, Frans Mulder, Lars Schäfer</br>
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02-07-2018 03:41 PM
Dynamics of Methyl Groups in Membrane Proteins Studied by Deterium Solid State NMR Relaxation
Dynamics of Methyl Groups in Membrane Proteins Studied by Deterium Solid State NMR Relaxation
Publication date: 16 February 2016
Source:Biophysical Journal, Volume 110, Issue 3, Supplement 1</br>
Author(s): Xiaolin Xu, Andrey V. Struts, Aswini Kumar Giri, Trivikram R. Molugu, Charitha Guruge, Samira Faylough, Carolina L. Nascimento, Nasri Nesnas, Victor J. Hruby, Michael F. Brown</br>
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02-17-2016 07:50 PM
[NMR paper] Quantifying Millisecond Exchange Dynamics in Proteins by CPMG Relaxation Dispersion NMR Using Side-Chain (1)H Probes.
From Mendeley Biomolecular NMR group:
Quantifying Millisecond Exchange Dynamics in Proteins by CPMG Relaxation Dispersion NMR Using Side-Chain (1)H Probes.
Journal of the American Chemical Society (2012). Volume: 134, Issue: 6. Pages: 3178-3189. Alexandar L Hansen, Patrik Lundström, Algirdas Velyvis, Lewis E Kay et al.
A Carr-Purcell-Meiboom-Gill relaxation dispersion experiment is presented for quantifying millisecond time-scale chemical exchange at side-chain (1)H positions in proteins. Such experiments are not possible in a fully protonated molecule because of magnetization...
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01-02-2013 01:48 PM
Estimating side-chain order in methyl-protonated, perdeuterated proteins via multiple-quantum relaxation violated coherence transfer NMR spectroscopy
Estimating side-chain order in methyl-protonated, perdeuterated proteins via multiple-quantum relaxation violated coherence transfer NMR spectroscopy
Abstract Relaxation violated coherence transfer NMR spectroscopy (Tugarinov et al. in J Am Chem Soc 129:1743â??1750, 2007) is an established experimental tool for quantitative estimation of the amplitudes of side-chain motions in methyl-protonated, highly deuterated proteins. Relaxation violated coherence transfer experiments monitor the build-up of methyl proton multiple-quantum coherences that can be created in magnetically equivalent...
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02-11-2012 10:31 AM
Quantifying millisecond time-scale exchange in proteins by CPMG relaxation dispersion NMR spectroscopy of side-chain carbonyl groups
Quantifying millisecond time-scale exchange in proteins by CPMG relaxation dispersion NMR spectroscopy of side-chain carbonyl groups
Abstract A new pulse sequence is presented for the measurement of relaxation dispersion profiles quantifying millisecond time-scale exchange dynamics of side-chain carbonyl groups in uniformly 13C labeled proteins. The methodology has been tested using the 87-residue colicin E7 immunity protein, Im7, which is known to fold via a partially structured low populated intermediate that interconverts with the folded, ground state on the millisecond time-scale....
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06-20-2011 03:31 PM
Quantifying millisecond time-scale exchange in proteins by CPMG relaxation dispersion NMR spectroscopy of side-chain carbonyl groups.
Quantifying millisecond time-scale exchange in proteins by CPMG relaxation dispersion NMR spectroscopy of side-chain carbonyl groups.
Quantifying millisecond time-scale exchange in proteins by CPMG relaxation dispersion NMR spectroscopy of side-chain carbonyl groups.
J Biomol NMR. 2011 Jun 18;
Authors: Hansen AL, Kay LE
A new pulse sequence is presented for the measurement of relaxation dispersion profiles quantifying millisecond time-scale exchange dynamics of side-chain carbonyl groups in uniformly (13)C labeled proteins. The methodology has...
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06-18-2011 01:10 PM
Probing Protein Side Chain Dynamics via (13)C NMR Relaxation.
Probing Protein Side Chain Dynamics via (13)C NMR Relaxation.
Probing Protein Side Chain Dynamics via (13)C NMR Relaxation.
Protein Pept Lett. 2011 Jan 11;
Authors: Yang D
Protein side chain dynamics is associated with protein stability, folding, and intermolecular interactions. Detailed dynamics information is crucial for the understanding of protein function and biochemical and biophysical properties, which can be obtained using NMR relaxation techniques. In this review, (13)C relaxation of methine, methylene and methyl groups with and without...
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01-13-2011 12:00 PM
[NMR paper] Probing side-chain dynamics in high molecular weight proteins by deuterium NMR spin r
Probing side-chain dynamics in high molecular weight proteins by deuterium NMR spin relaxation: an application to an 82-kDa enzyme.
Related Articles Probing side-chain dynamics in high molecular weight proteins by deuterium NMR spin relaxation: an application to an 82-kDa enzyme.
J Am Chem Soc. 2005 Jun 8;127(22):8214-25
Authors: Tugarinov V, Ollerenshaw JE, Kay LE
New NMR experiments for the measurement of side-chain dynamics in high molecular weight ( approximately 100 kDa) proteins are presented. The experiments quantify (2)H spin...
Probing Side-Chain Dynamics in Proteins by NMR Relaxation of Isolated (13)C Magnetization Modes in (13)CH(3) Methyl Groups
Linear Mode
