4.7 Article Proceedings Paper

Identifying Bacterial Essential Genes Based on a Feature-Integrated Method

出版社

IEEE COMPUTER SOC
DOI: 10.1109/TCBB.2017.2669968

关键词

Essential gene identification; feature-integrated method; principal component regression (PCR); computational model

资金

  1. National Natural Science Foundation of China [31470068, 31200991, 11147182]

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Essential genes are those genes of an organism that are considered to be crucial for its survival. Identification of essential genes is therefore of great significance to advance our understanding of the principles of cellular life. We have developed a novel computational method, which can effectively predict bacterial essential genes by extracting and integrating homologous features, protein domain feature, gene intrinsic features, and network topological features. By performing the principal component regression (PCR) analysis for Escherichia coli MG1655, we established a classification model with the average area under curve (AUC) value of 0.992 in ten times 5-fold cross-validation tests. Furthermore, when employing this new model to a distantly related organism-Streptococcus pneumoniae TIGR4, we still got a reliable AUC value of 0.788. These results indicate that our feature-integrated approach could have practical applications in accurately investigating essential genes from broad bacterial species, and also provide helpful guidelines for the minimal cell.

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