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VRprofile:基于基因簇检测的病毒性细菌基因组序列中编码的毒力和抗生素抗性性状分析

发布者:抗性基因网 时间:2018-04-19 浏览量:1546


摘要

VRprofile是一个Web服务器,可以帮助快速调查毒力和抗生素抗性基因,并在新测序的致病细菌基因组中扩展这些性状转移相关的遗传背景。使用的后端数据库MobilomeDB首先建立在已知的III / IV / VI / VII型细菌分泌系统基因簇位点和移动遗传元件上,包括整合和接合元件,预变性,I类整合子,IS元件和致病性/抗生素抵抗岛屿。 VRprofile因此能够使用HMMer或BLASTp搜索共同定位这些保守基因簇的同源物。随着同源基因簇搜索模块与序列组成模块的整合,VRprofile比其他广泛使用的方法显示出更好的岛状区域预测性能。此外,VRprofile还提供了一个集成的Web界面,可将识别的基因簇与MobilomeDB归档的基因簇或各种细菌基因组进行对齐和可视化。 VRprofile可能有助于满足对细菌可变区重新注释的日益增长的需求,并有助于实时定义感兴趣致病菌中疾病相关基因簇。


VRprofile is a Web server that facilitates rapid investigation of virulence and antibiotic resistance genes, as well as extends these trait transfer-related genetic contexts, in newly sequenced pathogenic bacterial genomes. The used backend database MobilomeDB was firstly built on sets of known gene cluster loci of bacterial type III/IV/VI/VII secretion systems and mobile genetic elements, including integrative and conjugative elements, prophages, class I integrons, IS elements and pathogenicity/antibiotic resistance islands. VRprofile is thus able to co-localize the homologs of these conserved gene clusters using HMMer or BLASTp searches. With the integration of the homologous gene cluster search module with a sequence composition module, VRprofile has exhibited better performance for island-like region predictions than the other widely used methods. In addition, VRprofile also provides an integrated Web interface for aligning and visualizing identified gene clusters with MobilomeDB-archived gene clusters, or a variety set of bacterial genomes. VRprofile might contribute to meet the increasing demands of re-annotations of bacterial variable regions, and aid in the real-time definitions of disease-relevant gene clusters in pathogenic bacteria of interest. 

https://academic.oup.com/bib/advance-article-abstract/doi/10.1093/bib/bbw141/2888442?redirectedFrom=fulltext