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- Title
A novel index of protein-protein interface propensity improves interface residue recognition.
- Authors
Wentao Dai; Aiping Wu; Liangxiao Ma; Yi-Xue Li; Taijiao Jiang; Yuan-Yuan Li
- Abstract
Background: Protein-protein interface holds important information of protein-protein interactions which play key roles in most biological processes. In the past few years, a lot of efforts have been made to improve interface residue recognition by characterizing protein-protein interfaces and extracting relevant features. However, most previous studies were carried out in a qualitative level, and there are also some inconsistencies between them. Results: In the present work, to improve interface residue recognition, we built a novel quantitative residue protein-protein interface propensity index (QIPI) and gained a comprehensive picture of protein-protein interface through analyzing protein-protein interfaces on our comprehensive protein-protein interfaces dataset (Astral2.05-40- 4506). Furthermore, in order to assess the effect of QIPI in improving the protein-protein interface prediction, we developed an interface residue recognition method SPR (Single domain based Patch Recognition) based on the QIPI. The evaluation results proved that our novel QIPI is able to improve the interface residue recognition. Conclusions: Through a comprehensive quantitative analysis of protein-protein interface, we constructed a novel quantitative protein-protein interface propensity index (QIPI), which could be easily applied to improve the interface residue recognition and helpful in understanding the protein-protein interface.
- Subjects
PROTEIN-protein interactions; SPRAYING &; dusting residues in agriculture; QUANTITATIVE research; SYSTEMS biology; PROTEINS
- Publication
BMC Systems Biology, 2016, Vol 10, p381
- ISSN
1752-0509
- Publication type
Article
- DOI
10.1186/s12918-016-0351-7