Title: Prediction of protein–protein interactions from primary sequences

Authors: Qiwen Dong, Shuigeng Zhou, Xuan Liu

Addresses: Shanghai Key Lab of Intelligent Information Processing, School of Computer Science, Fudan University, Shanghai 200433, China. ' Shanghai Key Lab of Intelligent Information Processing, School of Computer Science, Fudan University, Shanghai 200433, China. ' College of Engineering, Shanghai Ocean University, Number 999, HuCheng Ring-Rd, Shanghai 201303, China

Abstract: The prediction of protein–protein interactions is a difficult problem in biology. In this study, an efficient method is presented to predict protein–protein interactions with sequence composition information. Four kinds of basic building blocks of protein sequences are investigated. The experimental results show that there is minor difference in prediction performance among the four kinds of different building blocks. The method based on combination of all building blocks out performs any of the building blocks. We also demonstrate that the use of Latent Semantic Analysis (LSA) can efficiently remove noise and improve the prediction efficiency without significantly degrading the performance.

Keywords: protein–protein interaction; basic building blocks; LSA; latent semantic analysis; sequence composition; protein sequences; prediction performance.

DOI: 10.1504/IJDMB.2010.032151

International Journal of Data Mining and Bioinformatics, 2010 Vol.4 No.2, pp.211 - 227

Published online: 11 Mar 2010 *

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