Solid-state NMR experiments have recently provided a number of biochemical insights: motionally averaged 2H lineshapes have shown that the motion of a backbone loop protecting a protein binding site is not ligand gated; isotropic 13C chemical shifts of freeze-quenched enzyme-ligand intermediates have revealed mechanistic details of reaction pathways; multiple heteronuclear distance determinations have characterized the binding-site geometry of a 46 kDa noncrystalline enzyme complex; and homonuclear recoupling experiments have established that insoluble amyloid fibrils form a pleated beta sheet.
High dimensional and high resolution pulse sequences for backbone resonance assignment of intrinsically disordered proteins
High dimensional and high resolution pulse sequences for backbone resonance assignment of intrinsically disordered proteins
Abstract Four novel 5D (HACA(N)CONH, HNCOCACB, (HACA)CON(CA)CONH, (H)NCO(NCA)CONH), and one 6D ((H)NCO(N)CACONH) NMR pulse sequences are proposed. The new experiments employ non-uniform sampling that enables achieving high resolution in indirectly detected dimensions. The experiments facilitate resonance assignment of intrinsically disordered proteins. The novel pulse sequences were successfully tested using δ subunit (20 kDa) of Bacillus subtilis RNA polymerase...
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02-21-2012 03:40 AM
High-Resolution 39K NMR Spectroscopy of Bio-organic Solids
High-Resolution 39K NMR Spectroscopy of Bio-organic Solids
Gang Wu, Zhehong Gan, Irene C. M. Kwan, James C. Fettinger and Jeffery T. Davis
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/0/jacsat.ahead-of-print/ja2052446/aop/images/medium/ja-2011-052446_0001.gif
Journal of the American Chemical Society
DOI: 10.1021/ja2052446
http://feeds.feedburner.com/~ff/acs/jacsat?d=yIl2AUoC8zA
http://feeds.feedburner.com/~r/acs/jacsat/~4/udYj13RsOzQ
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08-13-2011 02:47 AM
NMR studies of alkali metal ions in organic and biological solids
NMR studies of alkali metal ions in organic and biological solids
Publication year: 2011
Source: Progress in Nuclear Magnetic Resonance Spectroscopy, In Press, Accepted Manuscript, Available online 13 June 2011</br>
Gang, Wu , Jianfeng, Zhu</br>
*Highlights:*? Comprehensive review of NMR of alkali metal ions in organic/biological solids ? Experimental solid-state NMR techniques and computational methods ? Survey of experimental alkali metal NMR data for organic/biological solids</br></br>
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06-14-2011 02:30 AM
Spin Diffusion Driven by R-Symmetry Sequences: Applications to Homonuclear Correlation Spectroscopy in MAS NMR of Biological and Organic Solids.
Spin Diffusion Driven by R-Symmetry Sequences: Applications to Homonuclear Correlation Spectroscopy in MAS NMR of Biological and Organic Solids.
Spin Diffusion Driven by R-Symmetry Sequences: Applications to Homonuclear Correlation Spectroscopy in MAS NMR of Biological and Organic Solids.
J Am Chem Soc. 2011 Mar 1;
Authors: Hou G, Yan S, Sun S, Han Y, Byeon IJ, Ahn J, Concel J, Samoson A, Gronenborn AM, Polenova T
We present a family of homonuclear (13)C-(13)Cmagic angle spinning spin diffusion experiments, based on R2(n)(v) (n = 1 and 2, v = 1...
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03-03-2011 12:34 PM
Spin Diffusion Driven by R-Symmetry Sequences: Applications to Homonuclear Correlation Spectroscopy in MAS NMR of Biological and Organic Solids
Spin Diffusion Driven by R-Symmetry Sequences: Applications to Homonuclear Correlation Spectroscopy in MAS NMR of Biological and Organic Solids
Guangjin Hou, Si Yan, Shangjin Sun, Yun Han, In-Ja L. Byeon, Jinwoo Ahn, Jason Concel, Ago Samoson, Angela M. Gronenborn and Tatyana Polenova
http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/jacsat/0/jacsat.ahead-of-print/ja108650x/aop/images/medium/ja-2010-08650x_0001.gif
Journal of the American Chemical Society
DOI: 10.1021/ja108650x
http://feeds.feedburner.com/~ff/acs/jacsat?d=yIl2AUoC8zA...
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03-02-2011 02:01 AM
High resolution NMR spectroscopy of nanocrystalline proteins at ultra-high magnetic field
High resolution NMR spectroscopy of nanocrystalline proteins at ultra-high magnetic field
Abstract Magic-angle spinning (MAS) solid-state NMR (SSNMR) spectroscopy of uniformly-13C,15N labeled protein samples provides insight into atomic-resolution chemistry and structure. Data collection efficiency has advanced remarkably in the last decade; however, the study of larger proteins is still challenged by relatively low resolution in comparison to solution NMR. In this study, we present a systematic analysis of SSNMR protein spectra acquired at 11.7, 17.6 and 21.1 Tesla (1H frequencies of...
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01-09-2011 12:46 PM
[NMR paper] A high-resolution technique for multidimensional NMR spectroscopy.
A high-resolution technique for multidimensional NMR spectroscopy.
Related Articles A high-resolution technique for multidimensional NMR spectroscopy.
IEEE Trans Biomed Eng. 1998 Jan;45(1):78-86
Authors: Li Y, Razavilar J, Liu KJ
In this paper, a scheme for estimating frequencies and damping factors of multidimensional nuclear magnetic resonance (NMR) data is presented, multidimensional NMR data can be modeled as the sum of several multidimensional damped sinusoids. The estimated frequencies and damping factors of multidimensional NMR data...
High-resolution NMR of biological solids.
Linear Mode
