GFT projection NMR spectroscopy for proteins in the solid state.
J Biomol NMR. 2010 Oct 30;
Authors: Trent Franks W, Atreya HS, Szyperski T, Rienstra CM
Recording of four-dimensional (4D) spectra for proteins in the solid state has opened new avenues to obtain virtually complete resonance assignments and three-dimensional (3D) structures of proteins. As in solution state NMR, the sampling of three indirect dimensions leads per se to long minimal measurement time. Furthermore, artifact suppression in solid state NMR relies primarily on radio-frequency pulse phase cycling. For an n-step phase cycle, the minimal measurement times of both 3D and 4D spectra are increased n times. To tackle the associated 'sampling problem' and to avoid sampling limited data acquisition, solid state G-Matrix Fourier Transform (SS GFT) projection NMR is introduced to rapidly acquire 3D and 4D spectral information. Specifically, (4,3)D (HA)CANCOCX and (3,2)D (HACA)NCOCX were implemented and recorded for the 6*kDa protein GB1 within about 10% of the time required for acquiring the conventional congeners with the same maximal evolution times and spectral widths in the indirect dimensions. Spectral analysis was complemented by comparative analysis of expected spectral congestion in conventional and GFT NMR experiments, demonstrating that high spectral resolution of the GFT NMR experiments enables one to efficiently obtain nearly complete resonance assignments even for large proteins.
PMID: 21052779 [PubMed - as supplied by publisher]
Three-dimensional deuterium-carbon correlation experiments for high-resolution solid-state MAS NMR spectroscopy of large proteins
Three-dimensional deuterium-carbon correlation experiments for high-resolution solid-state MAS NMR spectroscopy of large proteins
Abstract Well-resolved 2Hâ??13C correlation spectra, reminiscent of 1Hâ??13C correlations, are obtained for perdeuterated ubiquitin and for perdeuterated outer-membrane protein G (OmpG) from E. coli by exploiting the favorable lifetime of 2H double-quantum (DQ) states. Sufficient signal-to-noise was achieved due to the short deuterium T 1, allowing for high repetition rates and enabling 3D experiments with a 2Hâ??13C transfer step in a reasonable time....
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11-01-2011 01:52 AM
Proton-Detected Solid-State NMR Spectroscopy of Fibrillar and Membrane Proteins.
Proton-Detected Solid-State NMR Spectroscopy of Fibrillar and Membrane Proteins.
Proton-Detected Solid-State NMR Spectroscopy of Fibrillar and Membrane Proteins.
Angew Chem Int Ed Engl. 2011 Apr 20;
Authors: Linser R, Dasari M, Hiller M, Higman V, Fink U, Lopez Del Amo JM, Markovic S, Handel L, Kessler B, Schmieder P, Oesterhelt D, Oschkinat H, Reif B
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04-22-2011 02:00 PM
Proton-Detected Solid-State NMR Spectroscopy of Fibrillar and Membrane Proteins.
Proton-Detected Solid-State NMR Spectroscopy of Fibrillar and Membrane Proteins.
Proton-Detected Solid-State NMR Spectroscopy of Fibrillar and Membrane Proteins.
Angew Chem Int Ed Engl. 2011 Apr 14;
Authors: Linser R, Dasari M, Hiller M, Higman V, Fink U, Lopez Del Amo JM, Markovic S, Handel L, Kessler B, Schmieder P, Oesterhelt D, Oschkinat H, Reif B
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04-16-2011 12:29 PM
Optimum levels of exchangeable protons in perdeuterated proteins for proton detection in MAS solid-state NMR spectroscopy
Optimum levels of exchangeable protons in perdeuterated proteins for proton detection in MAS solid-state NMR spectroscopy
Abstract We present a systematic study of the effect of the level of exchangeable protons on the observed amide proton linewidth obtained in perdeuterated proteins. Decreasing the amount of D2O employed in the crystallization buffer from 90 to 0%, we observe a fourfold increase in linewidth for both 1H and 15N resonances. At the same time, we find a gradual increase in the signal-to-noise ratio (SNR) for 1Hâ??15N correlations in dipolar coupling based experiments for...
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01-09-2011 12:46 PM
[NMR paper] Projection-reconstruction technique for speeding up multidimensional NMR spectroscopy
Projection-reconstruction technique for speeding up multidimensional NMR spectroscopy.
Related Articles Projection-reconstruction technique for speeding up multidimensional NMR spectroscopy.
J Am Chem Soc. 2004 May 26;126(20):6429-40
Authors: Kupce E, Freeman R
The acquisition of multidimensional NMR spectra can be speeded up by a large factor by a projection-reconstruction method related to a technique used in X-ray scanners. The information from a small number of plane projections is used to recreate the full multidimensional spectrum in the...
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11-24-2010 09:51 PM
[NMR paper] Resolution enhancement in multidimensional solid-state NMR spectroscopy of proteins u
Resolution enhancement in multidimensional solid-state NMR spectroscopy of proteins using spin-state selection.
Related Articles Resolution enhancement in multidimensional solid-state NMR spectroscopy of proteins using spin-state selection.
J Am Chem Soc. 2003 Oct 1;125(39):11816-7
Authors: Duma L, Hediger S, Brutscher B, Böckmann A, Emsley L
We show that the resolution of homonuclear multidimensional solid-state NMR correlation experiments can be significantly improved using transition selection and spin-state-selective polarization transfer...
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11-24-2010 09:16 PM
[NMR paper] Solid-state NMR spectroscopy applied to membrane proteins.
Solid-state NMR spectroscopy applied to membrane proteins.
Related Articles Solid-state NMR spectroscopy applied to membrane proteins.
Curr Opin Struct Biol. 2000 Oct;10(5):593-600
Authors: de Groot HJ
One major remaining problem in structural biology is to elucidate the structure and mechanism of function of membrane proteins. On the basis of preliminary information from genome projects, it is now estimated that up to 50,000 different membrane proteins may exist in the human being and that virtually every life process proceeds, sooner or...
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11-19-2010 08:29 PM
Solid State NMR of membrane peptides and proteins
Solid State NMR of membrane peptides and proteins
Lecture notes on "Solid State NMR of membrane peptides and proteins" by Dr. SK Straus from Univ. of British Columbia
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