期刊
NUCLEIC ACIDS RESEARCH
卷 44, 期 W1, 页码 W367-W374出版社
OXFORD UNIV PRESS
DOI: 10.1093/nar/gkw315
关键词
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资金
- University of Padova [CPDR123473]
- Fondazione Italiana per la Ricerca sul Cancro [16621]
- Associazione Italiana per la Ricerca sul Cancro [MFAG12740, IG17753]
Residue interaction networks (RINs) are an alternative way of representing protein structures where nodes are residues and arcs physico-chemical interactions. RINs have been extensively and successfully used for analysing mutation effects, protein folding, domain-domain communication and catalytic activity. Here we present RING 2.0, a new version of the RING software for the identification of covalent and non-covalent bonds in protein structures, including pi-pi stacking and pi-cation interactions. RING 2.0 is extremely fast and generates both intra and inter-chain interactions including solvent and ligand atoms. The generated networks are very accurate and reliable thanks to a complex empirical re-parameterization of distance thresholds performed on the entire Protein Data Bank. By default, RING output is generated with optimal parameters but the web server provides an exhaustive interface to customize the calculation. The network can be visualized directly in the browser or in Cytoscape. Alternatively, the RING-Viz script for Pymol allows visualizing the interactions at atomic level in the structure. The web server and RING-Viz, together with an extensive help and tutorial, are available from URL: http://protein.bio.unipd.it/ring.
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