In nuclear magnetic resonance spectroscopy of proteins, methyl protons play a particular role as extremely sensitive reporters on dynamics, allosteric effects, and protein-protein interactions, accessible even in high-molecular-weight systems approaching 1 MDa. The notorious issue of their chemical shift assignment is addressed here by a joint use of solid-state ¹H-detected methods at very fast (nearly 100 kHz) magic-angle spinning, partial deuteration, and high-magnetic fields. The suitability...
Complete assignment of Ala, Ile, Leu, Met and Val methyl groups of human blood group A and B glycosyltransferases using lanthanide-induced pseudocontact shifts and methylâ??methyl NOESY
Complete assignment of Ala, Ile, Leu, Met and Val methyl groups of human blood group A and B glycosyltransferases using lanthanide-induced pseudocontact shifts and methylâ??methyl NOESY
Abstract
Human blood group A and B glycosyltransferases (GTA, GTB) are highly homologous glycosyltransferases. A number of high-resolution crystal structures is available showing that these enzymes convert from an open conformation into a catalytically active closed conformation upon substrate binding. However, the mechanism of glycosyltransfer is still under debate,...
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04-26-2018 04:36 PM
[NMR paper] Proton-detected MAS NMR experiments based on dipolar transfers for backbone assignment of highly deuterated proteins.
Proton-detected MAS NMR experiments based on dipolar transfers for backbone assignment of highly deuterated proteins.
Related Articles Proton-detected MAS NMR experiments based on dipolar transfers for backbone assignment of highly deuterated proteins.
J Magn Reson. 2014 Mar 4;242C:180-188
Authors: Chevelkov V, Habenstein B, Loquet A, Giller K, Becker S, Lange A
Abstract
Proton-detected solid-state NMR was applied to a highly deuterated insoluble, non-crystalline biological assembly, the Salmonella typhimurium type iii secretion system...
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03-29-2014 01:00 PM
Proton-detected MAS NMR experiments based on dipolar transfers for backbone assignment of highly deuterated proteins
Proton-detected MAS NMR experiments based on dipolar transfers for backbone assignment of highly deuterated proteins
Publication date: Available online 4 March 2014
Source:Journal of Magnetic Resonance</br>
Author(s): Veniamin Chevelkov , Birgit Habenstein , Antoine Loquet , Karin Giller , Stefan Becker , Adam Lange</br>
Proton-detected solid-state NMR was applied to a highly deuterated insoluble, non-crystalline biological assembly, the Salmonella typhimurium type iii secretion system (T3SS) needle. Spectra of very high resolution and sensitivity were obtained...
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03-04-2014 06:37 PM
[NMR paper] Specific labeling and assignment strategies of valine methyl groups for NMR studies of high molecular weight proteins.
Specific labeling and assignment strategies of valine methyl groups for NMR studies of high molecular weight proteins.
http://www.bionmr.com//www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--production.springer.de-OnlineResources-Logos-springerlink.gif Related Articles Specific labeling and assignment strategies of valine methyl groups for NMR studies of high molecular weight proteins.
J Biomol NMR. 2013 Sep 28;
Authors: Mas G, Crublet E, Hamelin O, Gans P, Boisbouvier J
Abstract
The specific protonation of valine and leucine methyl...
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10-01-2013 11:15 PM
[NMR paper] Out-and-back (13)C- (13)C scalar transfers in protein resonance assignment by proton-detected solid-state NMR under ultra-fast MAS.
Out-and-back (13)C- (13)C scalar transfers in protein resonance assignment by proton-detected solid-state NMR under ultra-fast MAS.
Related Articles Out-and-back (13)C- (13)C scalar transfers in protein resonance assignment by proton-detected solid-state NMR under ultra-fast MAS.
J Biomol NMR. 2013 Jun 29;
Authors: Barbet-Massin E, Pell AJ, Jaudzems K, Franks WT, Retel JS, Kotelovica S, Akopjana I, Tars K, Emsley L, Oschkinat H, Lesage A, Pintacuda G
Abstract
We present here (1)H-detected triple-resonance H/N/C experiments that...
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07-03-2013 01:46 PM
Observation and Relaxation Properties of Individual Fast-Relaxing Proton Transitions in [CH3]-Methyl-Labeled, Deuterated Proteins
Observation and Relaxation Properties of Individual Fast-Relaxing Proton Transitions in -Methyl-Labeled, Deuterated Proteins
Publication year: 2012
Source: Journal of Magnetic Resonance, Available online 2 March 2012</br>
Hechao*Sun, Vitali*Tugarinov</br>
A pair of NMR experiments is developed for separation of individual fast-relaxing transitions inCH3methyl groups of methyl-protonated, highly deuterated proteins, and the measurement of their relaxation rates. Intra-methylH-H/H-C dipole-dipole cross-correlated spin relaxation that differentiates the rates of the fast-relaxing...
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03-06-2012 06:04 AM
A simple biosynthetic method for stereospecific resonance assignment of prochiral methyl groups in proteins
A simple biosynthetic method for stereospecific resonance assignment of prochiral methyl groups in proteins
Abstract A new method for stereospecific assignment of prochiral methyl groups in proteins is presented in which protein samples are produced using U-glucose and subsaturating amounts of 2-methyl-acetolactate. The resulting non-uniform labeling pattern allows proR and proS methyl groups to be easily distinguished by their different phases in a constant-time two-dimensional 1H-13C correlation spectra. Protein samples are conveniently prepared using the same media composition as the...
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02-06-2011 07:42 PM
[NMR paper] Cross-correlated relaxation enhanced 1H[bond]13C NMR spectroscopy of methyl groups in
Cross-correlated relaxation enhanced 1H13C NMR spectroscopy of methyl groups in very high molecular weight proteins and protein complexes.
Related Articles Cross-correlated relaxation enhanced 1H13C NMR spectroscopy of methyl groups in very high molecular weight proteins and protein complexes.
J Am Chem Soc. 2003 Aug 27;125(34):10420-8
Authors: Tugarinov V, Hwang PM, Ollerenshaw JE, Kay LE
A comparison of HSQC and HMQC pulse schemes for recording (1)H(13)C correlation maps of protonated methyl groups in highly deuterated proteins is presented....