[Stan NMR blog] "Metabolomics" of NMR solvents
"Metabolomics" of NMR solvents
An exhortation to the managers of NMR labs: please, keep your solvents clean!
Source: Stan blog library
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11-23-2010 07:10 AM
[U. of Ottawa NMR Facility Blog] 13C NMR of "Perdeuterated" Solvents
13C NMR of "Perdeuterated" Solvents
When one acquires a 13C NMR spectrum of a sample, the deuterated solvent is observed with resonances characterized by the J coupling pattern of the deuterons attached to the carbon atoms. (CD = 1:1:1 triplet, CD2 = 1:3:4:3:1 quintet, CD3 = 1:3:6:7:6:3:1 septet). Often, however; small peaks are observed near the main solvent resonances. These are due to other isotopomers of the solvent. An example of this is shown in the bottom spectrum of the figure below for the high frequency resonance of "THF-d8". The spectrum consists mainly of the expected 1:3:4:3:1...
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10-28-2010 09:14 PM
Mechanically, Magnetically, and "Rotationally Aligned" Membrane Proteins in Phospholi
Mechanically, Magnetically, and "Rotationally Aligned" Membrane Proteins in Phospholipid Bilayers Give Equivalent Angular Constraints for NMR Structure Determination.
Related Articles Mechanically, Magnetically, and "Rotationally Aligned" Membrane Proteins in Phospholipid Bilayers Give Equivalent Angular Constraints for NMR Structure Determination.
J Phys Chem B. 2010 Oct 20;
Authors: Park SH, Das BB, De Angelis AA, Scrima M, Opella SJ
The native environment for membrane proteins is the highly asymmetric phospholipid bilayer, and this has a large...
[Question from NMRWiki Q&A forum] What is the easiest way to emulate the "array" command from VNMR in XWINNMR/TOPSPIN?
What is the easiest way to emulate the "array" command from VNMR in XWINNMR/TOPSPIN?
What is the easiest way to emulate the "array" command from VNMR in XWINNMR/TOPSPIN? I recently moved from a lab using a Varian (Unity plus 500) with VNMR 6.whatever to a lab with only Bruker (AVANCE 300/400/500) spectrometers available. I am used to using the "array" caommand in VNMR and viewing the spectra with "dssa" or "dssh." I don't know a convenient way to do the same thing in XWINNMR. I know there are some AU programs but I'm not sure what they all do or if what I want is available. I tried...
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09-24-2010 07:36 PM
[NMR paper] NMR structure of a stable "OB-fold" sub-domain isolated from staphylococcal nuclease.
NMR structure of a stable "OB-fold" sub-domain isolated from staphylococcal nuclease.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--linkinghub.elsevier.com-ihub-images-PubMedLink.gif Related Articles NMR structure of a stable "OB-fold" sub-domain isolated from staphylococcal nuclease.
J Mol Biol. 1995 Jul 7;250(2):134-43
Authors: Alexandrescu AT, Gittis AG, Abeygunawardana C, Shortle D
Similar folds often occur in proteins with dissimilar sequences. The OB-fold forms a part of the structures of at least seven non-homologous proteins...