Information dimension analysis of bacterial essential and nonessential genes based on chaos game representation
Information dimension analysis of bacterial essential and nonessential genes based on chaos game representation
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基于混沌博弈表示的细菌必需与非必需基因信息维数分析
DOI:
10.1088/0022-3727/47/46/465401
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发表时间:
2014-11
期刊:
影响因子:
--
通讯作者:
Yong-Ming Yu
中科院分区:
文献类型:
--
作者:
Qian Zhou;Yong-Ming Yu
Essential genes are indispensable for the survival of an organism. Investigating features associated with gene essentiality is fundamental to the prediction and identification of the essential genes. Selecting features associated with gene essentiality is fundamental to predict essential genes with computational techniques. We use fractal theory to make comparative analysis of essential and nonessential genes in bacteria. The information dimensions of essential genes and nonessential genes available in the DEG database for 27 bacteria are calculated based on their gene chaos game representations (CGRs). It is found that weak positive linear correlation exists between information dimension and gene length. Moreover, for genes of similar length, the average information dimension of essential genes is larger than that of nonessential genes. This indicates that essential genes show less regularity and higher complexity than nonessential genes. Our results show that for bacterium with a similar number of essential genes and nonessential genes, the CGR information dimension is helpful for the classification of essential genes and nonessential genes. Therefore, the gene CGR information dimension is very probably a useful gene feature for a genetic algorithm predicting essential genes.
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