Related ArticlesReconstructing NMR spectra of "invisible" excited protein states using HSQC and HMQC experiments.
J Am Chem Soc. 2002 Oct 16;124(41):12352-60
Authors: Skrynnikov NR, Dahlquist FW, Kay LE
Carr-Purcell-Meiboom-Gill (CPMG) relaxation measurements employing trains of 180 degrees pulses with variable pulse spacing provide valuable information about systems undergoing millisecond-time-scale chemical exchange. Fits of the CPMG relaxation dispersion profiles yield rates of interconversion, relative populations, and absolute values of chemical shift differences between the exchanging states, |Deltaomega|. It is shown that the sign of Deltaomega that is lacking from CPMG dispersion experiments can be obtained from a comparison of chemical shifts in the indirect dimensions in either a pair of HSQC (heteronuclear single quantum coherence) spectra recorded at different magnetic fields or HSQC and HMQC (heteronuclear multiple quantum coherence) spectra obtained at a single field. The methodology is illustrated with an application to a cavity mutant of T4 lysozyme in which a leucine at position 99 has been replaced by an alanine, giving rise to exchange between ground state and excited state conformations with a rate on the order of 1450 s(-1) at 25 degrees C.
Structure determination in "shiftless" solid state NMR of oriented protein samples.
Structure determination in "shiftless" solid state NMR of oriented protein samples.
Structure determination in "shiftless" solid state NMR of oriented protein samples.
J Magn Reson. 2011 Jul 6;
Authors: Yin Y, Nevzorov AA
An efficient formalism for calculating protein structures from oriented-sample NMR data in the torsion-angle space is presented. Angular anisotropies of the NMR observables are treated by utilizing an irreducible spherical basis of rotations. An intermediate rotational transformation is introduced that greatly speeds up...
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07-12-2011 06:23 PM
[NMRpipe Yahoo group] Re: Convering Varian's "S3" spectra
Re: Convering Varian's "S3" spectra
Have a look in the NMRPipe script library graciously maintained by Dr. Ryan McKay and the staff of NANUC ... www.nanuc.ca ... while you're at the web site, you
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03-09-2011 04:19 AM
[NMRpipe Yahoo group] Convering Varian's "S3" spectra
Convering Varian's "S3" spectra
Hello all. I wondering if anyone has conversion scripts for the "spin-state-selective" pulse sequences in Varian's Biopack. These pulse sequences are named
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[NMR paper] Lanthanide ions bind specifically to an added "EF-hand" and orient a membrane protein
Lanthanide ions bind specifically to an added "EF-hand" and orient a membrane protein in micelles for solution NMR spectroscopy.
Related Articles Lanthanide ions bind specifically to an added "EF-hand" and orient a membrane protein in micelles for solution NMR spectroscopy.
J Magn Reson. 2000 Oct;146(2):381-4
Authors: Ma C, Opella SJ
Twelve amino acid residues corresponding to an "EF-hand" calcium-binding site were added to the N-terminus of a protein, providing a specific lanthanide ion binding that weakly orients the protein in solution. A...
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11-19-2010 08:29 PM
Postdoctoral Position "Solution Dynamics of Protein Kinases" in New York
Postdoctoral Position "Solution Dynamics of Protein Kinases" in New York
A postdoctoral position to study the solution dynamics and structure
of protein kinases is available on a NIH funded project (REF#:
HS-R-6453-10-08-S). Our group is interested in how static and dynamic
changes of protein structure affect the activity of protein kinases.
We combine X-ray crystallography, NMR and ligand binding kinetics with
collaborative molecular dynamic studies (See e.g. ref 1 and 2). Our
research group is located at Stony Brook University in a highly
interactive environment with the New York...
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08-21-2010 05:17 AM
Postdoctoral Position "Solution Dynamics of Protein Kinases" in New York
Postdoctoral Position "Solution Dynamics of Protein Kinases" in New York
A postdoctoral position to study the solution dynamics and structure
of protein kinases is available on a NIH funded project (REF#:
HS-R-6453-10-08-S). Our group is interested in how static and dynamic
changes of protein structure affect the activity of protein kinases.
We combine X-ray crystallography, NMR and ligand binding kinetics with
collaborative molecular dynamic studies (See e.g. ref 1 and 2). Our
research group is located at Stony Brook University in a highly
interactive environment with the New York...
nmrlearner
Job marketplace
0
08-21-2010 05:14 AM
Using relaxation dispersion NMR spectroscopy to determine structures of excited, invisible protein states
Using relaxation dispersion NMR spectroscopy to determine structures of excited, invisible protein states
D. Flemming Hansen, Pramodh Vallurupalli and Lewis E. Kay
Journal of Biomolecular NMR; 2008; 41(3); pp 113 - 120
Abstract:
Currently the main focus of structural biology is the determination of static three-dimensional representations of biomolecules that for the most part correspond to low energy (ground state) conformations. However, it is becoming increasingly well recognized that higher energy structures often play important roles in function as well. Because these conformers...
Reconstructing NMR spectra of "invisible" excited protein states using HSQC and HMQC
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