Bioinformatics Advance Access originally published online on March 7, 2006
Bioinformatics 2006 22(11):1335-1342; doi:10.1093/bioinformatics/btl079
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Predicting protein interaction sites: binding hot-spots in proteinprotein and proteinligand interfaces
Institute of Molecular and Cellular Biology, Faculty of Biological Sciences, University of Leeds Leeds LS2 9JT, UK
*To whom correspondence should be addressed.
Motivation: Protein assemblies are currently poorly represented in structural databases and their structural elucidation is a key goal in biology. Here we analyse clefts in protein surfaces, likely to correspond to binding hot-spots, and rank them according to sequence conservation and simple measures of physical properties including hydrophobicity, desolvation, electrostatic and van der Waals potentials, to predict which are involved in binding in the native complex.
Results: The resulting differences between predicting binding-sites at proteinprotein and proteinligand interfaces are striking. There is a high level of prediction accuracy (
93%) for proteinligand interactions, based on the following attributes: van der Waals potential, electrostatic potential, desolvation and surface conservation. Generally, the prediction accuracy for proteinprotein interactions is lower, with the exception of enzymes. Our results show that the ease of cleft desolvation is strongly predictive of interfaces and strongly maintained across all classes of protein-binding interface.
Contact: r.m.jackson{at}leeds.ac.uk
Supplementary information: Supplementary data are available at Bioinformatics online.
Received on January 20, 2006; revised on February 14, 2006; accepted on February 28, 2006
This article has been cited by other articles:
![]() |
H.-X. Zhou and S. Qin Interaction-site prediction for protein complexes: a critical assessment Bioinformatics, September 1, 2007; 23(17): 2203 - 2209. [Abstract] [Full Text] [PDF] |
||||
