The automated assignment of NOESY cross peaks has become a fundamental technique for NMR protein structure analysis. A widely used algorithm for this purpose is implemented in the program CYANA. It has been used for a large number of structure determinations of proteins in solution but a systematic evaluation of its performance has not yet been reported. In this paper we systematically analyze the reliability of combined automated NOESY assignment and structure calculation with CYANA under a variety of conditions on the basis of the experimental NMR data sets of ten proteins. To evaluate the robustness of the algorithm, the original high-quality experimental data sets were modified in different ways to simulate the effect of data imperfections, i.e. incomplete or erroneous chemical shift assignments, missing NOESY cross peaks, inaccurate peak positions, inaccurate peak intensities, lower dimensionality NOESY spectra, and higher tolerances for the matching of chemical shifts and peak positions. The results show that the algorithm is remarkably robust with regard to imperfections of the NOESY peak lists and the chemical shift tolerances but susceptible to lacking or erroneous resonance assignments, in particular for nuclei that are involved in many NOESY cross peaks.
Exclusively NOESY-based automated NMR assignment and structure determination of proteins
Exclusively NOESY-based automated NMR assignment and structure determination of proteins
Abstract A fully automated method is presented for determining NMR solution structures of proteins using exclusively NOESY spectra as input, obviating the need to measure any spectra only for obtaining resonance assignments but devoid of structural information. Applied to two small proteins, the approach yielded structures that coincided closely with conventionally determined structures.
Content Type Journal Article
Pages 1-10
DOI 10.1007/s10858-011-9502-8
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Exclusively NOESY-based automated NMR assignment and structure determination of proteins.
Exclusively NOESY-based automated NMR assignment and structure determination of proteins.
Exclusively NOESY-based automated NMR assignment and structure determination of proteins.
J Biomol NMR. 2011 Mar 30;
Authors: Ikeya T, Jee JG, Shigemitsu Y, Hamatsu J, Mishima M, Ito Y, Kainosho M, Güntert P
A fully automated method is presented for determining NMR solution structures of proteins using exclusively NOESY spectra as input, obviating the need to measure any spectra only for obtaining resonance assignments but devoid of structural information....
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03-31-2011 06:24 PM
Error tolerant NMR backbone resonance assignment and automated structure generation.
Error tolerant NMR backbone resonance assignment and automated structure generation.
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J Bioinform Comput Biol. 2011 Feb;9(1):15-41
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Error tolerant backbone resonance assignment is the cornerstone of the NMR structure determination process. Although a variety of assignment approaches have been developed, none works sufficiently well on noisy fully automatically picked peaks to enable...
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02-18-2011 08:07 PM
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This chapter gives an introduction to automated nuclear magnetic resonance (NMR) structure calculation with the program CYANA. Given a sufficiently complete list of assigned chemical shifts and one or several lists of cross-peak positions and columns from two-, three-, or four-dimensional nuclear Overhauser effect spectroscopy (NOESY) spectra, the assignment of the NOESY...
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Combined automated NOE assignment and structure determination module (CANDID) is a new software for efficient NMR structure determination of proteins by automated...
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PASD: auto NOE assignment & structure calculation
Completely Automated, Highly Error-Tolerant Macromolecular Structure Determination from Multidimensional Nuclear Overhauser Enhancement Spectra and Chemical Shift Assignments
Kuszewski, J.; Schwieters, C. D.; Garrett, D. S.; Byrd, R. A.; Tjandra, N.; Clore, G. M.;
J. Am. Chem. Soc. 2004; 126(20); 6258-6273
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Abstract:
The major rate-limiting step in high-throughput NMR protein structure determination involves the calculation of a reliable initial fold, the elimination of incorrect nuclear Overhauser...