Related ArticlesSite-selective labeling strategies for screening by NMR.
Comb Chem High Throughput Screen. 2002 Dec;5(8):623-30
Authors: Weigelt J, Wikström M, Schultz J, van Dongen MJ
NMR based screening has become an important tool in the pharmaceutical industry. Methods that provide information on the location of small molecule binding sites on the surface of a drug target (e. g. SAR-by-NMR and related techniques) are of particular interest. In order to extend the applicability of such techniques to drug targets of higher molecular weight, selective labeling strategies may be employed. Dual-amino acid selective labeling and site directed non-native amino acid replacement (SNAAR) allow for the selective detection of NMR resonances of a specific amino acid residue. This results in significantly reduced spectral complexity, which not only enables application to higher molecular weight systems, but also eliminates the need for sequential resonance assignment in order to identify the binding site. Regio-selective (or segmental) labeling of an entire protein domain of a multi domain protein may also be achieved. Labeling only a selected part of a multi domain protein (e. g. a catalytic or ligand binding domain) is an attractive way to simplify the spectral interpretation without disturbing the system under study.
Biomass production of site selective 13C/15N nucleotides using wild type and a transketolase E. coli mutant for labeling RNA for high resolution NMR
Biomass production of site selective 13C/15N nucleotides using wild type and a transketolase E. coli mutant for labeling RNA for high resolution NMR
Abstract Characterization of the structure and dynamics of nucleic acids by NMR benefits significantly from position specifically labeled nucleotides. Here an E. coli strain deficient in the transketolase gene (tktA) and grown on glucose that is labeled at different carbon sites is shown to facilitate cost-effective and large scale production of useful nucleotides. These nucleotides are site specifically labeled in C1â?² and C5â?² with...
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11-30-2011 10:45 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...
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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...
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03-18-2011 06:43 AM
Isotope labeling strategies for NMR studies of RNA
Isotope labeling strategies for NMR studies of RNA
Abstract The known biological functions of RNA have expanded in recent years and now include gene regulation, maintenance of sub-cellular structure, and catalysis, in addition to propagation of genetic information. As for proteins, RNA function is tightly correlated with structure. Unlike proteins, structural information for larger, biologically functional RNAs is relatively limited. NMR signal degeneracy, relaxation problems, and a paucity of long-range 1Hâ??1H dipolar contacts have limited the utility of traditional NMR approaches....
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01-09-2011 12:46 PM
[NMR paper] Site-selective screening by NMR spectroscopy with labeled amino acid pairs.
Site-selective screening by NMR spectroscopy with labeled amino acid pairs.
Related Articles Site-selective screening by NMR spectroscopy with labeled amino acid pairs.
J Am Chem Soc. 2002 Mar 20;124(11):2446-7
Authors: Weigelt J, van Dongen M, Uppenberg J, Schultz J, Wikström M
A new method for site-selective screening by NMR is presented. The core of the new method is the dual amino acid sequence specific labeling technique. Amino acid X is labeled with (13)C and amino acid Y is labeled with (15)N. Provided only one XY pair occurs in the...
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11-24-2010 08:49 PM
[NMR paper] New developments in isotope labeling strategies for protein solution NMR spectroscopy
New developments in isotope labeling strategies for protein solution NMR spectroscopy.
Related Articles New developments in isotope labeling strategies for protein solution NMR spectroscopy.
Curr Opin Struct Biol. 2000 Oct;10(5):585-92
Authors: Goto NK, Kay LE
The development of novel isotope labeling strategies for proteins has facilitated the study of the structure and dynamics of these molecules. In addition, the recent emergence of alternative methods of bacterial expression for obtaining isotopically labeled proteins permits the study of...
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11-19-2010 08:29 PM
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...
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11-09-2010 03:17 PM
Cell-free expression and labeling strategies for a new decade in solid-state NMR.
Cell-free expression and labeling strategies for a new decade in solid-state NMR.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--linkinghub.elsevier.com-ihub-images-PubMedLink.gif Related Articles Cell-free expression and labeling strategies for a new decade in solid-state NMR.
N Biotechnol. 2010 Aug 3;
Authors: Abdine A, Verhoeven MA, Warschawski DE
Although solid-state NMR and cell-free expression have recently become standard methods in biology, the combination of the two is still at a very early stage of development. In this...
Site-selective labeling strategies for screening by NMR.
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