ATRIPPI: An atom-residue preference scoring function for protein-protein interactions

Kang Ping Liu, Lu Shian Chang, Jinn-Moon Yang*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We present an ATRIPPI model for analyzing protein-protein interactions. This model is a 167-atom-type and residue-specific interaction preferences with distance bins derived from 641 cocrystallized protein-protein interfaces. The ATRIPPI model is able to yield physical meanings of hydrogen bonding, disulfide bonding, electrostatic interactions, van der Waals and aromatic-aromatic interactions. We applied this model to identify the native states and near-native complex structures on 17 bound and 17 unbound complexes from thousands of decoy structures. On average, 77.5% structures (155 structures) of top rank 200 structures are closed to the native structure. These results suggest that the ATRIPPI model is able to keep the advantages of both atom-atom and residue-residue interactions and is a potential knowledge-based scoring function for protein-protein docking methods. We believe that our model is robust and provides biological meanings to support protein-protein interactions.

Original languageEnglish
Title of host publicationProceedings of the 2009 9th IEEE International Conference on Bioinformatics and BioEngineering, BIBE 2009
Pages392-399
Number of pages8
DOIs
StatePublished - 2009
Event2009 9th IEEE International Conference on Bioinformatics and BioEngineering, BIBE 2009 - Taichung, Taiwan
Duration: 22 Jun 200924 Jun 2009

Publication series

NameProceedings of the 2009 9th IEEE International Conference on Bioinformatics and BioEngineering, BIBE 2009

Conference

Conference2009 9th IEEE International Conference on Bioinformatics and BioEngineering, BIBE 2009
Country/TerritoryTaiwan
CityTaichung
Period22/06/0924/06/09

Keywords

  • Atom-atom interacting preference
  • Knowledge-based scoring matrix
  • Protein-protein interaction
  • Residue-residue interaction preference

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