Hi all, I have a structure at 2.65A that I'm in the process of refining. It's a complex that has ~1100 residues total, and what looks like a fair amount of
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
[CNS Yahoo group] water refinement problem - broken structure
water refinement problem - broken structure
Dear all, I'm trying to perform water refinement for the very first time (new CNS user), on an NMR ensemble of CYANA calculated protein structures but the end
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07-18-2011 09:41 AM
[NMR paper] Towards high-resolution solid-state NMR on large uniformly 15N- and [13C,15N]-labeled
Towards high-resolution solid-state NMR on large uniformly 15N- and -labeled membrane proteins in oriented lipid bilayers.
Related Articles Towards high-resolution solid-state NMR on large uniformly 15N- and -labeled membrane proteins in oriented lipid bilayers.
J Biomol NMR. 2002 Mar;22(3):225-47
Authors: Vosegaard T, Nielsen NC
Based on exact numerical simulations, taking into account isotropic and conformation-dependent anisotropic nuclear spin interactions, we systematically analyse the prospects for high-resolution solid-state NMR on...
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11-24-2010 08:49 PM
[NMR paper] Carbonyl CSA restraints from solution NMR for protein structure refinement.
Carbonyl CSA restraints from solution NMR for protein structure refinement.
Related Articles Carbonyl CSA restraints from solution NMR for protein structure refinement.
J Am Chem Soc. 2001 Nov 7;123(44):11065-6
Authors: Lipsitz RS, Tjandra N
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11-19-2010 08:44 PM
[NMR paper] Refinement of the protein backbone angle psi in NMR structure calculations.
Refinement of the protein backbone angle psi in NMR structure calculations.
Related Articles Refinement of the protein backbone angle psi in NMR structure calculations.
J Biomol NMR. 2000 Jan;16(1):47-58
Authors: Sprangers R, Bottomley MJ, Linge JP, Schultz J, Nilges M, Sattler M
Cross-correlated relaxation rates involving the Calpha-Halpha dipolar interaction and the carbonyl (C') chemical shift anisotropy (CSA) have been measured using two complementary 3D experiments. We show that the protein backbone angle psi can be directly refined...
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11-18-2010 09:15 PM
[NMR paper] 800 MHz 1H NMR solution structure refinement of oxidized cytochrome c7 from Desulfuro
800 MHz 1H NMR solution structure refinement of oxidized cytochrome c7 from Desulfuromonas acetoxidans.
Related Articles 800 MHz 1H NMR solution structure refinement of oxidized cytochrome c7 from Desulfuromonas acetoxidans.
Eur J Biochem. 1998 Sep 1;256(2):261-70
Authors: Assfalg M, Banci L, Bertini I, Bruschi M, Turano P
The solution structure of Desulfuromonas acetoxidans cytochrome c7 has been refined by using 1H-NMR spectra recorded at 800 MHz and by using pseudocontact shifts in the final energy minimization procedure. The protein,...
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11-17-2010 11:15 PM
[NMR paper] NMR chemical shifts and structure refinement in proteins.
NMR chemical shifts and structure refinement in proteins.
Related Articles NMR chemical shifts and structure refinement in proteins.
J Biomol NMR. 1993 Sep;3(5):607-12
Authors: Laws DD, de Dios AC, Oldfield E
Computation of the 13C alpha chemical shifts (or shieldings) of glycine, alanine and valine residues in bovine and Drosophila calmodulins and Staphylococcal nuclease, and comparison with experimental values, is reported using a gauge-including atomic orbital quantum-chemical approach. The full approximately 24 ppm shielding range is...
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08-22-2010 03:01 AM
structure refinement after cyana
Can anybody tell me, how to energy minimize a CYANA calculated average structure. I used model_minimize.inp from CNS, but is there any other method generally used by the CYANA users.
Also, how can I get the bonds, impropers and angle violation (rmsds) information on the CYANA calculated structures. Does CYANA has any program to do it.
Please help me with it.
Thank you.