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P-binder: A system for the protein-protein binding sites identification

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

Determination of binding sites between proteins has a wide range of applications. Understanding energetics and mechanism of complexes remains one of the essential problems in binding site prediction. We develop a system, P-Binder, for identifying binding sites based on structural compatibility, side-chain conformations, amino acid types and contact energies. P-Binder utilizes an enumeration method and side-chain packing program to identify structurally compatible sites. The system reports the sites with the highest ranked configurations, evaluated through a combination of four statistical energy items. We test P-Binder on protein-protein docking Benchmark v4.0. The overall accuracy and coverage are 64.0% and 69.4% for the bound state, and 51.1% and 61.4% for the unbound state. A comparison with some existing techniques shows P-Binder to improve the success rate by at least 12.3%. The system reports improvements in prediction quality, in terms of both accuracy and coverage. The software package is available at http://sites.google.com/site/guofeics/p-binder for non-commercial use. © 2012 Springer-Verlag.
Original languageEnglish
Title of host publicationBioinformatics Research and Applications
Subtitle of host publication8th International Symposium, ISBRA 2012, Proceedings
PublisherSpringer Verlag
Pages127-138
Volume7292 LNBI
ISBN (Print)9783642301902
DOIs
Publication statusPublished - 2012
Event8th International Symposium on Bioinformatics Research and Applications, ISBRA 2012 - Dallas, TX, United States
Duration: 21 May 201223 May 2012

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume7292 LNBI
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference8th International Symposium on Bioinformatics Research and Applications, ISBRA 2012
PlaceUnited States
CityDallas, TX
Period21/05/1223/05/12

Research Keywords

  • binding site prediction
  • free energy function
  • Protein-protein interaction
  • secondary structure
  • side-chain conformation

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