An appreciable level of isotope labelling is essential for future NMR structure elucidation of mammalian biomaterials, which are either poorly expressed, or unexpressable, using micro-organisms. We present a detailed protocol for high level 13C enrichment even in slow turnover murine biomaterials (fur keratin), using a customized diet supplemented with commercial labelled algal hydrolysate and formulated as a gel to minimize wastage, which female mice consumed during pregnancy and lactation. This procedure produced approximately eightfold higher fur keratin labelling in pups, exposed in utero and throughout life to label, than in adults exposed for the same period, showing both the effectiveness, and necessity, of this approach.
[NMR paper] Preparation of uniformly (13)C,(15)N-labeled recombinant human amylin for solid-state NMR investigation.
Preparation of uniformly (13)C,(15)N-labeled recombinant human amylin for solid-state NMR investigation.
http://www.bionmr.com//www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--linkinghub.elsevier.com-ihub-images-PubMedLink.gif Related Articles Preparation of uniformly (13)C,(15)N-labeled recombinant human amylin for solid-state NMR investigation.
Protein Expr Purif. 2014 Apr 18;
Authors: Kosicka I, Kristensen T, Bjerring M, Thomsen K, Scavenius C, Enghild JJ, Nielsen NC
Abstract
A number of diseases are caused by the formation...
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04-23-2014 06:31 PM
[NMR paper] Ionization Behavior of Polyphosphoinositides Determined via the Preparation of pH Titration Curves Using Solid-State (31)P NMR.
Ionization Behavior of Polyphosphoinositides Determined via the Preparation of pH Titration Curves Using Solid-State (31)P NMR.
Ionization Behavior of Polyphosphoinositides Determined via the Preparation of pH Titration Curves Using Solid-State (31)P NMR.
Methods Mol Biol. 2013;1009:129-42
Authors: Graber ZT, Kooijman EE
Abstract
Detailed knowledge of the degree of ionization of lipid titratable groups is important for the evaluation of protein-lipid and lipid-lipid interactions. The degree of ionization is commonly evaluated by...
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05-18-2013 09:42 PM
Preparation of RNA samples with narrow line widths for solid state NMR investigations
Preparation of RNA samples with narrow line widths for solid state NMR investigations
Publication year: 2012
Source:Journal of Magnetic Resonance</br>
Wei Huang, Michael F. Bardaro, Gabriele Varani, Gary P. Drobny</br>
Solid state NMR can provide detailed structural and dynamic information on biological systems that cannot be studied under solution conditions, and can investigate motions which occur with rates that cannot be fully studied by solution NMR. This approach has successfully been used to study proteins, but the application of multidimensional solid state...
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08-10-2012 08:40 PM
Mammalian production of an isotopically enriched outer domain of the HIV-1 gp120 glycoprotein for NMR spectroscopy.
Mammalian production of an isotopically enriched outer domain of the HIV-1 gp120 glycoprotein for NMR spectroscopy.
Mammalian production of an isotopically enriched outer domain of the HIV-1 gp120 glycoprotein for NMR spectroscopy.
J Biomol NMR. 2011 Jun 12;
Authors: Sastry M, Xu L, Georgiev IS, Bewley CA, Nabel GJ, Kwong PD
NMR spectroscopic characterization of the structure or the dynamics of proteins generally requires the production of samples isotopically enriched in (15)N, (13)C, or (2)H. The bacterial expression systems currently in use to...
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06-15-2011 01:15 PM
Mammalian production of an isotopically enriched outer domain of the HIV-1 gp120 glycoprotein for NMR spectroscopy
Mammalian production of an isotopically enriched outer domain of the HIV-1 gp120 glycoprotein for NMR spectroscopy
Abstract NMR spectroscopic characterization of the structure or the dynamics of proteins generally requires the production of samples isotopically enriched in 15N, 13C, or 2H. The bacterial expression systems currently in use to obtain isotopic enrichment, however, cannot produce a number of eukaryotic proteins, especially those that require post-translational modifications such as N-linked glycosylation for proper folding or activity. Here, we report the use of an...
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06-15-2011 02:31 AM
[NMR paper] Preparation of protein nanocrystals and their characterization by solid state NMR.
Preparation of protein nanocrystals and their characterization by solid state NMR.
Related Articles Preparation of protein nanocrystals and their characterization by solid state NMR.
J Magn Reson. 2003 Nov;165(1):162-74
Authors: Martin RW, Zilm KW
Preparation of proteins in their crystalline state has been found to be important in producing stable therapeutic protein formulations, cross-linked enzyme crystals for application in industrial processes, generating novel porous media for separations, and of course in structure elucidation. Of these...
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11-24-2010 09:16 PM
[NMR paper] Partial NMR assignments for uniformly (13C, 15N)-enriched BPTI in the solid state.
Partial NMR assignments for uniformly (13C, 15N)-enriched BPTI in the solid state.
Related Articles Partial NMR assignments for uniformly (13C, 15N)-enriched BPTI in the solid state.
J Biomol NMR. 2000 Mar;16(3):209-19
Authors: McDermott A, Polenova T, Bockmann A, Zilm KW, Paulson EK, Martin RW, Montelione GT, Paulsen EK
We demonstrate that high-resolution multidimensional solid state NMR methods can be used to correlate many backbone and side chain chemical shifts for hydrated micro-crystalline U-13C,15N Basic Pancreatic Trypsin Inhibitor...
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11-18-2010 09:15 PM
[NMR paper] Direct observation of cell wall structure in living plant tissues by solid-state C NM
Direct observation of cell wall structure in living plant tissues by solid-state C NMR spectroscopy.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www.pubmedcentral.nih.gov-corehtml-pmc-pmcgifs-pubmed-pmc.gif Related Articles Direct observation of cell wall structure in living plant tissues by solid-state C NMR spectroscopy.
Plant Physiol. 1990 Jan;92(1):61-5
Authors: Jarvis MC, Apperley DC
Solid-state (13)C nuclear magnetic resonance (NMR) spectra of the following intact plant tissues were recorded by the crosspolarization...