Exploring NMR ensembles of calcium binding proteins: perspectives to design inhibitors of protein-protein interactions.
Exploring NMR ensembles of calcium binding proteins: perspectives to design inhibitors of protein-protein interactions.
Exploring NMR ensembles of calcium binding proteins: perspectives to design inhibitors of protein-protein interactions.
BMC Struct Biol. 2011 May 12;11(1):24
Authors: Isvoran A, Badel A, Craescu CT, Miron S, Miteva MA
ABSTRACT: BACKGROUND: Disrupting protein-protein interactions by small organic molecules is nowadays a promising strategy employed to block protein targets involved in different pathologies. However, structural...
nmrlearner
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05-17-2011 06:21 PM
[NMR analysis blog] Alignment of NMR spectra Part IV: Advanced Alignment
Alignment of NMR spectra Part IV: Advanced Alignment
Previous posts on this series:
Alignment of NMR spectra Part I: The problem
Alignment of NMR spectra Part II: Binning / Bucketing
Alignment of NMR spectra Part III: Global Alignment
As I mentioned in my previous post, simple alignment based on shifting or referencing the whole spectrum is not enough in cases where there are different local chemical shift fluctuations.
Resorting back to the synthetic data set used in the previous posts, let me introduce a semi-automatic method designed specifically to align spectra having...
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02-07-2011 07:53 PM
[NMR analysis blog] Alignment of NMR spectra Part III: Global Alignment
Alignment of NMR spectra Part III: Global Alignment
Previous posts on this series:
Alignment of NMR spectra Part I: The problem
Alignment of NMR spectra Part II: Binning / Bucketing
We have seen that binning helps in minimizing, for example, the effect of pH-induced fluctuations in chemical shift so that, in the field of NMR-based metabonomics studies, ensuring that signals for a given metabolite appear at the same location in all spectra. One evident disadvantage of binning is that it greatly reduces the spectral resolution (e.g. in a 500 MHz instrument, a typical 64 Kb...
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02-03-2011 06:51 PM
[NMR paper] Principal components analysis of protein structure ensembles calculated using NMR dat
Principal components analysis of protein structure ensembles calculated using NMR data.
Related Articles Principal components analysis of protein structure ensembles calculated using NMR data.
J Biomol NMR. 2001 May;20(1):61-70
Authors: Howe PW
One important problem when calculating structures of biomolecules from NMR data is distinguishing converged structures from outlier structures. This paper describes how Principal Components Analysis (PCA) has the potential to classify calculated structures automatically, according to correlated...
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11-19-2010 08:32 PM
[NMR paper] Defining protein ensembles with native-state NH exchange: kinetics of interconversion
Defining protein ensembles with native-state NH exchange: kinetics of interconversion and cooperative units from combined NMR and MS analysis.
Related Articles Defining protein ensembles with native-state NH exchange: kinetics of interconversion and cooperative units from combined NMR and MS analysis.
J Mol Biol. 1999 Jan 22;285(3):1265-75
Authors: Arrington CB, Teesch LM, Robertson AD
Previous studies of native-state peptide hydrogen atom (NH) exchange in turkey ovomucoid third domain (OMTKY3) yielded the thermodynamics and kinetics of...
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11-18-2010 07:05 PM
Mapping of protein structural ensembles by chemical shifts
Abstract Applying the chemical shift prediction programs SHIFTX and SHIFTS to a data base of protein structures with known chemical shifts we show that the averaged chemical shifts predicted from the structural ensembles explain better the experimental data than the lowest energy structures. This is in agreement with the fact that proteins in solution occur in multiple conformational states in fast exchange on the chemical shift time scale. However, in contrast to the real conditions in solution at ambient temperatures, the standard NMR structural calculation methods as well chemical shift...
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08-14-2010 04:19 AM
Structure-based protein NMR assignments using native structural ensembles
Structure-based protein NMR assignments using native structural ensembles
Mehmet Serkan Apaydın, Vincent Conitzer and Bruce Randall Donald
Journal of Biomolecular NMR; 2008; 40(4); pp 263-276
Abstract:
An important step in NMR protein structure determination is the assignment of resonances and NOEs to corresponding nuclei. Structure-based assignment (SBA) uses a model structure (template) for the target protein to expedite this process. Nuclear vector replacement (NVR) is an SBA framework that combines multiple sources of NMR data (chemical shifts, RDCs, sparse NOEs, amide exchange...
matthias
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08-14-2008 12:54 AM
Structure-based sequence alignment programs & servers
Got your NMR structure finally? Use it to get a better sequence alignment with the following programs:
http://www.cgl.ucsf.edu/home/meng/grpmt/structalign/3dcoffee.pngTCoffee
JOY
HOMSTRAD
PASS2
source: http://www.cgl.ucsf.edu/home/meng/grpmt/structalign/