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Nucleic Acids Res. 2007 Jul;35(Web Server issue):W407-10. Epub 2007 May 21.

ProSA-web: interactive web service for the recognition of errors in three-dimensional structures of proteins.

Author information

1
Center of Applied Molecular Engineering, Division of Bioinformatics, University of Salzburg, Hellbrunnerstrasse 34, 5020 Salzburg, Austria.

Abstract

A major problem in structural biology is the recognition of errors in experimental and theoretical models of protein structures. The ProSA program (Protein Structure Analysis) is an established tool which has a large user base and is frequently employed in the refinement and validation of experimental protein structures and in structure prediction and modeling. The analysis of protein structures is generally a difficult and cumbersome exercise. The new service presented here is a straightforward and easy to use extension of the classic ProSA program which exploits the advantages of interactive web-based applications for the display of scores and energy plots that highlight potential problems spotted in protein structures. In particular, the quality scores of a protein are displayed in the context of all known protein structures and problematic parts of a structure are shown and highlighted in a 3D molecule viewer. The service specifically addresses the needs encountered in the validation of protein structures obtained from X-ray analysis, NMR spectroscopy and theoretical calculations. ProSA-web is accessible at https://prosa.services.came.sbg.ac.at.

PMID:
17517781
PMCID:
PMC1933241
DOI:
10.1093/nar/gkm290
[Indexed for MEDLINE]
Free PMC Article

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