Abstract Sensitive 2D solid-state 13Câ??13C correlation spectra of amyloid β fibrils have been recorded at very fast spinning frequencies and very high magnetic fields. It is demonstrated that PARIS-xy recoupling using moderate rf amplitudes can provide structural information by promoting efficient magnetization transfer even under such challenging experimental conditions. Furthermore, it has been shown both experimentally and by numerical simulations that the method is not very sensitive to dipolar truncation effects and can reveal direct transfer across distances of about 3.5â??4Ă?.
Intermolecular Structure Determination of Amyloid Fibrils with Magic-Angle Spinning and Dynamic Nuclear Polarization NMR
Intermolecular Structure Determination of Amyloid Fibrils with Magic-Angle Spinning and Dynamic Nuclear Polarization NMR
Marvin J. Bayro, Galia T. Debelouchina, Matthew T. Eddy, Neil R. Birkett, Catherine E. MacPhee, Melanie Rosay, Werner E. Maas, Christopher M. Dobson and Robert G. Griffin
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/0/jacsat.ahead-of-print/ja203756x/aop/images/medium/ja-2011-03756x_0002.gif
Journal of the American Chemical Society
DOI: 10.1021/ja203756x
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Intermolecular structure determination of amyloid fibrils with magic-angle spinning and dynamic nuclear polarization NMR.
Intermolecular structure determination of amyloid fibrils with magic-angle spinning and dynamic nuclear polarization NMR.
Intermolecular structure determination of amyloid fibrils with magic-angle spinning and dynamic nuclear polarization NMR.
J Am Chem Soc. 2011 Jul 21;
Authors: Bayro MJ, Debelouchina GT, Eddy MT, Birkett NR, Macphee CE, Rosay MM, Maas WE, Dobson CM, Griffin RG
We describe magic-angle spinning NMR experiments designed to elucidate the interstrand architecture of amyloid fibrils. Three methods are introduced for this purpose, two...
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07-23-2011 08:54 AM
Chemical shift correlation at high MAS frequencies employing low-power symmetry-based mixing schemes
Chemical shift correlation at high MAS frequencies employing low-power symmetry-based mixing schemes
Abstract An approach for conveniently implementing low-power CN n ν and RN n ν symmetry-based band-selective mixing sequences for generating homo- and heteronuclear chemical shift correlation NMR spectra of low γ nuclei in biological solids is demonstrated. Efficient magnetisation transfer characteristics are achieved by selecting appropriate symmetries requiring the application of basic RF elements of relatively long duration and numerically tailoring the RF field modulation profile...
Structural Characterization of GNNQQNY Amyloid Fibrils by Magic Angle Spinning NMR
Structural Characterization of GNNQQNY Amyloid Fibrils by Magic Angle Spinning NMR
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/bichaw/0/bichaw.ahead-of-print/bi100077x/aop/images/medium/bi-2010-00077x_0004.gif
Biochemistry
DOI: 10.1021/bi100077x
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10-14-2010 04:59 AM
High-Resolution MAS NMR Analysis of PI3-SH3 Amyloid Fibrils: Backbone Conformation an
High-Resolution MAS NMR Analysis of PI3-SH3 Amyloid Fibrils: Backbone Conformation and Implications for Protofilament Assembly and Structure
http://pubs.acs.org//appl/literatum/publisher/achs/journals/content/bichaw/0/bichaw.ahead-of-print/bi100864t/aop/images/medium/bi-2010-00864t_0004.gifBiochemistry, Volume 0, Issue 0, Articles ASAP (As Soon As Publishable).
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08-18-2010 12:19 AM
High-Resolution MAS NMR Analysis of PI3-SH3 Amyloid Fibrils: Backbone Conformation an
High-Resolution MAS NMR Analysis of PI3-SH3 Amyloid Fibrils: Backbone Conformation and Implications for Protofilament Assembly and Structure .
Related Articles High-Resolution MAS NMR Analysis of PI3-SH3 Amyloid Fibrils: Backbone Conformation and Implications for Protofilament Assembly and Structure .
Biochemistry. 2010 Aug 13;
Authors: Bayro MJ, Maly T, Birkett NR, Macphee CE, Dobson CM, Griffin RG
The SH3 domain of the PI3 kinase (PI3-SH3 or PI3K-SH3) readily aggregates into fibrils in vitro and has served as an important model system in the...
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08-17-2010 01:53 PM
Structural Characterization of GNNQQNY Amyloid Fibrils by Magic Angle Spinning NMR.
Structural Characterization of GNNQQNY Amyloid Fibrils by Magic Angle Spinning NMR.
http://www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--pubs.acs.org-images-acspubs.jpg Related Articles Structural Characterization of GNNQQNY Amyloid Fibrils by Magic Angle Spinning NMR.
Biochemistry. 2010 Aug 9;
Authors: van der Wel PC, Lewandowski JR, Griffin RG
Various human diseases feature the formation of amyloid aggregates, but experimental characterization of these amyloid fibrils and their oligomeric precursors has remained challenging. Experimental...