Characterization of proteins in different subcellular localizations for Escherichia coli K12 |
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| Authors: | Qi Zhang Shiyuan Wang Yi Pan Dongqing Su Qianzi Lu Yongchun Zuo Lei Yang |
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| Institution: | 1. College of Bioinformatics Science and Technology, Harbin Medical University, Harbin 150081, China;2. The State key Laboratory of Reproductive Regulation, Breeding of Grassland Livestock, College of Life Sciences, Inner Mongolia University, Hohhot 010070, China |
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| Abstract: | Knowing the comprehensive knowledge about the protein subcellular localization is an important step to understand the function of the proteins. Recent advances in system biology have allowed us to develop more accurate methods for characterizing the proteins at subcellular localization level. In this study, the analysis method was developed to characterize the topological properties and biological properties of the cytoplasmic proteins, inner membrane proteins, outer membrane proteins and periplasmic proteins in Escherichia coli (E. coli). Statistical significant differences were found in all topological properties and biological properties among proteins in different subcellular localizations. In addition, investigation was carried out to analyze the differences in 20 amino acid compositions for four protein categories. We also found that there were significant differences in all of the 20 amino acid compositions. These findings may be helpful for understanding the comprehensive relationship between protein subcellular localization and biological function |
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| Keywords: | Corresponding authors Network Topological properties Biological properties Amino acid compositions |
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