Selective Fluorine NMR Spectroscopy :: University of Southampton
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[Question from NMRWiki Q&A forum] How to perform non-selective spectroscopy with an imager?
How to perform non-selective spectroscopy with an imager?
Greetings NMR Wiki,
I am using a Bruker Biospec 24/30, (100 MHz 1H, DBX, Pv3, XWIN), equiped with a 36mm litz coil probe, to perform basic T1 & T2 measurements as well as DOSY. The sample is water. Images look great, basic spectroscopy has a systematic error.
My prior NMR experience is in chemistry on solid state systems using the chemagnetics CMX II type spectrometer. The Bruker instrument has been sending pulses for 6 months after I made a few repairs and was dormant (cold but not pulsing) for 5 years prior.
Is anyone...
nmrlearner
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03-15-2012 06:10 AM
[Question from NMRWiki Q&A forum] incorporating fluorine into proteins
incorporating fluorine into proteins
Hi
I was considering the possibility of trying some fluorine NMR and was wanting to know if anyone knew any simple ways of incorporating Fluorine probes into my protein relatively cheaply or using E.coli. I would be particularly interested in using fluro-tryptophan for dual use as NMR and florescence probes. Also does anyone have a feel for the size limitations of 19F probes literature always quotes around 100KDa but is it possible to go considerably higher, say 500?
any advice would be great
Tom
nmrlearner
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02-02-2012 09:43 PM
Frequency-selective heteronuclear dephasing and selective carbonyl labeling to deconvolute crowded spectra of membrane proteins by magic angle spinning NMR.
Frequency-selective heteronuclear dephasing and selective carbonyl labeling to deconvolute crowded spectra of membrane proteins by magic angle spinning NMR.
Frequency-selective heteronuclear dephasing and selective carbonyl labeling to deconvolute crowded spectra of membrane proteins by magic angle spinning NMR.
J Magn Reson. 2011 Mar 17;
Authors: Traaseth NJ, Veglia G
We present a new method that combines carbonyl-selective labeling with frequency-selective heteronuclear recoupling to resolve the spectral overlap of magic angle spinning (MAS) NMR...
nmrlearner
Journal club
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04-13-2011 11:57 PM
Frequency-Selective Heteronuclear Dephasing and Selective Carbonyl Labeling to Deconvolute Crowded Spectra of Membrane Proteins By Magic Angle Spinning NMR
Frequency-Selective Heteronuclear Dephasing and Selective Carbonyl Labeling to Deconvolute Crowded Spectra of Membrane Proteins By Magic Angle Spinning NMR
Publication year: 2011
Source: Journal of Magnetic Resonance, In Press, Accepted Manuscript, Available online 17 March 2011</br>
Nathaniel J., Traaseth , Gianluigi, Veglia</br>
We present a new method that combines carbonyl-selective labeling with frequency-selective heteronuclear recoupling to resolve the spectral overlap of magic angle spinning (MAS) NMR spectra of membrane proteins in fluid lipid membranes with broad lines and...
nmrlearner
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03-18-2011 06:43 AM
Selective 13C labeling of nucleotides for large RNA NMR spectroscopy using an E. coli
Selective 13C labeling of nucleotides for large RNA NMR spectroscopy using an E. coli strain disabled in the TCA cycle
Abstract Escherichia coli (E. coli) is an ideal organism to tailor-make labeled nucleotides for biophysical studies of RNA. Recently, we showed that adding labeled formate enhanced the isotopic enrichment at protonated carbon sites in nucleotides. In this paper, we show that growth of a mutant E. coli strain DL323 (lacking succinate and malate dehydrogenases) on 13C-2-glycerol and 13C-1,3-glycerol enables selective labeling at many useful sites for RNA NMR...
nmrlearner
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11-09-2010 03:17 PM
[NMR paper] Estimation of the intracellular free ADP concentration by 19F NMR studies of fluorine
Estimation of the intracellular free ADP concentration by 19F NMR studies of fluorine-labeled yeast phosphoglycerate kinase in vivo.
Related Articles Estimation of the intracellular free ADP concentration by 19F NMR studies of fluorine-labeled yeast phosphoglycerate kinase in vivo.
Biochemistry. 1993 May 11;32(18):4895-902
Authors: Williams SP, Fulton AM, Brindle KM
Yeast phosphoglycerate kinase was selectively fluorine-labeled in vivo by inducing enzyme synthesis in stationary phase cells in the presence of 5-fluorotryptophan. Inducible...
nmrlearner
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08-21-2010 11:53 PM
[NMR paper] Specific in vitro labeling of cells with a fluorine-19 probe encapsulated in antibody
Specific in vitro labeling of cells with a fluorine-19 probe encapsulated in antibody-targeted liposomes: a F-19 NMR spectroscopy study.
Related Articles Specific in vitro labeling of cells with a fluorine-19 probe encapsulated in antibody-targeted liposomes: a F-19 NMR spectroscopy study.
Magn Reson Med. 1993 Feb;29(2):252-5
Authors: Vion-Dury J, Machy P, Confort-Gouny S, Leserman L, Cozzone PJ
Liposomes containing dexamethasone phosphate (DMp) were covalently coupled to protein A and then incubated with murine L929 fibroblast and RDM4...
Selective Fluorine NMR Spectroscopy :: University of Southampton
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