文献类型： 外文期刊
作者： Mei, Han 1 ; Tang, Qing 1 ; Li, Xinfeng 1 ; Wang, Yaxi 1 ; Wang, Jieping 2 ; He, Jin 1 ;
作者机构： 1.Huazhong Agr Univ, Coll Life Sci & Technol, State Key Lab Agr Microbiol, Wuhan 430070, Hubei, Peoples R China
2.Fujian Acad Agr Sci, Agr Bioresource Inst, Fuzhou 350003, Fujian, Peoples R China
关键词： Bacillus cereus group;bioinformatics;motif-based search;response regulator (RR);RNA-seq;small regulatory RNA (sRNA);transcriptome;two-component system (TCS)
期刊名称：CURRENT BIOINFORMATICS （ 影响因子：3.543； 五年影响因子：2.048 ）
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收录情况： SCI
摘要： Two-component systems (TCSs) and small regulatory RNAs (sRNAs) form dense regulatory networks in bacteria. To expand the known repertoire of TCS regulons in the Bacillus cereus group, we employed an in silico strategy to identify sRNA genes that might be regulated by response regulators (RRs) of TCS. Using the whole genomes of 21 fully sequenced strains of the B. cereus group, we identified 12 different types of novel sRNA genes. Using transcriptome data from B. thuringiensis CT-43, we confirmed the independent transcription of both the sRNA_bc4 gene and the sRNA_bc6 gene. Furthermore, the sRNA_bc6 and sRNA_bc12 genes were demonstrated to exist exclusively in the B. cereus group and thus have the potential to act as molecular markers. Finally, we modified the recognition motifs of PhoP and YclJ in the B. cereus group. These results significantly contribute to our understanding of TCS regulons in bacteria.
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