[U. of Ottawa NMR Facility Blog] The Effect of Viscosity on 1H NOESY Spectra
The Effect of Viscosity on 1H NOESY Spectra
For small molecules, 1H 2D NOESY spectra exhibit positive NOE's between protons close to one another in space and the off-diagonal correlations are opposite in phase to those of the diagonals. As molecules become larger and larger the motional correlation times become longer and longer. As the correlation times become longer and longer, the NOE's become less positive, cross zero and then become negative. For large molecules, like proteins, the NOE's are negative and the off-diagonal correlations between close protons are of the same phase as the...
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10-29-2011 12:15 AM
[Question from NMRWiki Q&A forum] Area of effect?
Area of effect?
What defines the area of effect of nuclear magnetic resonance?Is it the magnetic field? the frequency? Or just the diameter of the coils?
Check if somebody has answered this question on NMRWiki QA forum
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02-17-2011 09:41 AM
[NMR paper] An NMR investigation of the conformational effect of nitroxide spin labels on Ala-ric
An NMR investigation of the conformational effect of nitroxide spin labels on Ala-rich helical peptides.
Related Articles An NMR investigation of the conformational effect of nitroxide spin labels on Ala-rich helical peptides.
J Magn Reson. 1998 Apr;131(2):248-53
Authors: Bolin KA, Hanson P, Wright SJ, Millhauser GL
Nitroxide spin labels, in conjunction with electron spin resonance (ESR) experiments, are extensively employed to probe the structure and dynamics of biomolecules. One of the most ubiquitous spin labeling reagents is the...
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11-17-2010 11:06 PM
[NMR paper] 2H NMR studies of the effect of pulmonary surfactant SP-C on the 1,2-dipalmitoyl-sn-g
2H NMR studies of the effect of pulmonary surfactant SP-C on the 1,2-dipalmitoyl-sn-glycero-3-phosphocholine headgroup: a model for transbilayer peptides in surfactant and biological membranes.
Related Articles 2H NMR studies of the effect of pulmonary surfactant SP-C on the 1,2-dipalmitoyl-sn-glycero-3-phosphocholine headgroup: a model for transbilayer peptides in surfactant and biological membranes.
Biochemistry. 1993 Oct 26;32(42):11338-44
Authors: Morrow MR, Taneva S, Simatos GA, Allwood LA, Keough KM
Surfactant protein C (SP-C) was...
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08-22-2010 03:01 AM
[NMR paper] Effect of cholesterol on the polymorphism of dipalmitoylphosphatidylcholine/melittin
Effect of cholesterol on the polymorphism of dipalmitoylphosphatidylcholine/melittin complexes: an NMR study.
Related Articles Effect of cholesterol on the polymorphism of dipalmitoylphosphatidylcholine/melittin complexes: an NMR study.
Biochim Biophys Acta. 1993 Jul 4;1149(2):319-28
Authors: Monette M, Van Calsteren MR, Lafleur M
In order to get insights into the effects of cholesterol on protein activity, the lytic power of melittin on 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC)/cholesterol mixtures was studied using solid-state...
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08-22-2010 03:01 AM
[NMR paper] Effect of trifluoroethanol on protein secondary structure: an NMR and CD study using
Effect of trifluoroethanol on protein secondary structure: an NMR and CD study using a synthetic actin peptide.
Related Articles Effect of trifluoroethanol on protein secondary structure: an NMR and CD study using a synthetic actin peptide.
Biochemistry. 1992 Sep 22;31(37):8790-8
Authors: Sönnichsen FD, Van Eyk JE, Hodges RS, Sykes BD
The structure of a synthetic peptide comprising the 28 amino-terminal residues of actin has been examined by 1H-NMR and CD spectroscopy. The peptide is largely unstructured and flexible in solution but becomes...
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08-21-2010 11:45 PM
[NMR paper] Effect of bacteriorhodopsin on the orientation of the headgroup of 1,2-dimyristoyl-sn
Effect of bacteriorhodopsin on the orientation of the headgroup of 1,2-dimyristoyl-sn-glycero-3-phosphocholine in bilayers: a 31P- and 2H-NMR study.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--linkinghub.elsevier.com-ihub-images-PubMedLink.gif Related Articles Effect of bacteriorhodopsin on the orientation of the headgroup of 1,2-dimyristoyl-sn-glycero-3-phosphocholine in bilayers: a 31P- and 2H-NMR study.
Biochim Biophys Acta. 1992 May 21;1106(2):317-24
Authors: Gale P, Watts A
Bacteriorhodopsin (BR), purified from the halophilic...
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08-21-2010 11:41 PM
Effect of chemical shift tolerance on ARIA results
Influence of chemical shift tolerances on NMR structure calculations using ARIA protocols for assigning NOE data.
Fossi M, Linge J, Labudde D, Leitner D, Nilges M, Oschkinat H.
Forschungsinstitut fur Molekulare Pharmakologie, Robert-Rossle-Str. 10, 13125, Berlin, Germany, oschkinat@fmp-berlin.de.
J Biomol NMR. 2005 Jan;31(1):21-34.
Large-scale protein structure determination by NMR via automatic assignment of NOESY spectra requires the adjustment of several parameters for optimal performance. Among those are the chemical shift tolerance windows (Delta), which allow for the...
The Hebel-Slichter effect
Linear Mode
