Author(s): Dwaipayan Mukhopadhyay, Chitrak Gupta, Theint Theint, Christopher P. Jaroniec
Abstract
Multidimensional magic-angle spinning solid-state NMR experiments are described that permit cis and trans peptide bonds in uniformly 13C,15N-labeled peptides and proteins to be unambiguously distinguished in residue-specific manner by determining the relative orientations of the amide 13C? CSA and 1H-15N dipolar coupling tensors. The experiments are demonstrated for model peptides glycylglycine and 2,5-diketopiperazine containing trans and cis peptide bonds, respectively. Subsequently, the measurements are extended to two representative proteins that contain exclusively trans peptide bonds, microcrystalline B3 immunoglobulin domain of protein G and Y145Stop human prion protein amyloid fibrils, to illustrate their applicability to a wide range of protein systems.
[NMR paper] Handling the influence of chemical shift in amplitude-modulated heteronuclear dipolar recoupling solid-state NMR.
Handling the influence of chemical shift in amplitude-modulated heteronuclear dipolar recoupling solid-state NMR.
http://www.bionmr.com//www.ncbi.nlm.nih.gov/corehtml/query/egifs/https:--publishing.aip.org-sites-default-files-aippub-NLM-scitationblue.jpg Related Articles Handling the influence of chemical shift in amplitude-modulated heteronuclear dipolar recoupling solid-state NMR.
J Chem Phys. 2016 Sep 07;145(9):094202
Authors: Basse K, Shankar R, Bjerring M, Vosegaard T, Nielsen NC, Nielsen AB
Abstract
We present a...
nmrlearner
Journal club
0
08-18-2017 03:56 AM
[NMR paper] Hydrogen bond strength in membrane proteins probed by time-resolved (1)H-detected solid-state NMR and MD simulations.
Hydrogen bond strength in membrane proteins probed by time-resolved (1)H-detected solid-state NMR and MD simulations.
Related Articles Hydrogen bond strength in membrane proteins probed by time-resolved (1)H-detected solid-state NMR and MD simulations.
Solid State Nucl Magn Reson. 2017 Mar 18;:
Authors: Medeiros-Silva J, Jekhmane S, Baldus M, Weingarth M
Abstract
(1)H-detected solid-state NMR in combination with (1)H/(2)D exchange steps allows for the direct identification of very strong hydrogen bonds in membrane proteins....
nmrlearner
Journal club
0
03-28-2017 03:06 PM
[NMR paper] Determining hydrogen-bond interactions in spider silk with 1H-13C HETCOR fast MAS solid-state NMR and DFT proton chemical shift calculations.
Determining hydrogen-bond interactions in spider silk with 1H-13C HETCOR fast MAS solid-state NMR and DFT proton chemical shift calculations.
http://www.bionmr.com//www.ncbi.nlm.nih.gov/corehtml/query/egifs/http:--www.rsc.org-images-entities-char_z_RSClogo.gif Related Articles Determining hydrogen-bond interactions in spider silk with 1H-13C HETCOR fast MAS solid-state NMR and DFT proton chemical shift calculations.
Chem Commun (Camb). 2013 Jul 28;49(59):6680-2
Authors: Holland GP, Mou Q, Yarger JL
Abstract
Two-dimensional (2D) (1)H-(13)C...
nmrlearner
Journal club
0
01-18-2014 11:31 AM
[NMR paper] Identifying inter-residue resonances in crowded 2D (13)C- (13)C chemical shift correlation spectra of membrane proteins by solid-state MAS NMR difference spectroscopy.
Identifying inter-residue resonances in crowded 2D (13)C- (13)C chemical shift correlation spectra of membrane proteins by solid-state MAS NMR difference spectroscopy.
Identifying inter-residue resonances in crowded 2D (13)C- (13)C chemical shift correlation spectra of membrane proteins by solid-state MAS NMR difference spectroscopy.
J Biomol NMR. 2013 May 25;
Authors: Miao Y, Cross TA, Fu R
Abstract
The feasibility of using difference spectroscopy, i.e. subtraction of two correlation spectra at different mixing times, for substantially...
nmrlearner
Journal club
0
05-28-2013 06:36 PM
Solid state NMR of proteins at high MAS frequencies: symmetry-based mixing and simultaneous acquisition of chemical shift correlation spectra
Solid state NMR of proteins at high MAS frequencies: symmetry-based mixing and simultaneous acquisition of chemical shift correlation spectra
Abstract We have carried out chemical shift correlation experiments with symmetry-based mixing sequences at high MAS frequencies and examined different strategies to simultaneously acquire 3D correlation spectra that are commonly required in the structural studies of proteins. The potential of numerically optimised symmetry-based mixing sequences and the simultaneous recording of chemical shift correlation spectra such as: 3D NCAC and 3D NHH...
nmrlearner
Journal club
0
11-29-2012 03:14 AM
Chemical shift tensor – The heart of NMR: Insights into biological aspects of proteins
Chemical shift tensor – The heart of NMR: Insights into biological aspects of proteins
Publication year: 2010
Source:Progress in Nuclear Magnetic Resonance Spectroscopy, Volume 57, Issue 2</br>
Hazime Saitô, Isao Ando, Ayyalusamy Ramamoorthy</br>
</br>
</br></br>
nmrlearner
Journal club
0
03-09-2012 09:16 AM
Prediction of Xaa-Pro peptide bond conformation from sequence and chemical shifts
Abstract We present a program, named Promega, to predict the Xaa-Pro peptide bond conformation on the basis of backbone chemical shifts and the amino acid sequence. Using a chemical shift database of proteins of known structure together with the PDB-extracted amino acid preference of cis Xaa-Pro peptide bonds, a cis/trans probability score is calculated from the backbone and 13Cβ chemical shifts of the proline and its neighboring residues. For an arbitrary number of input chemical shifts, which may include Pro-13Cγ, Promega calculates the statistical probability that a Xaa-Pro peptide bond...
nmrlearner
Journal club
0
08-14-2010 04:19 AM
Four-dimensional heteronuclear correlation experiments for chemical shift assignment of solid proteins
Four-dimensional heteronuclear correlation experiments for chemical shift assignment of solid proteins
W. Trent Franks, Kathryn D. Kloepper, Benjamin J. Wylie and Chad M. Rienstra
Journal of Biomolecular NMR; 2007; 39(2); pp 107 - 131
Abstract:
Chemical shift assignment is the first step in all established protocols for structure determination of uniformly labeled proteins by NMR. The explosive growth in recent years of magic-angle spinning (MAS) solid-state NMR (SSNMR) applications is largely attributable to improved methods for backbone and side-chain chemical shift correlation...