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- W2073234876 endingPage "e52835" @default.
- W2073234876 startingPage "e52835" @default.
- W2073234876 abstract "Chaperone-usher (CU) fimbriae are adhesive surface organelles common to many Gram-negative bacteria. Escherichia coli genomes contain a large variety of characterised and putative CU fimbrial operons, however, the classification and annotation of individual loci remains problematic. Here we describe a classification model based on usher phylogeny and genomic locus position to categorise the CU fimbrial types of E. coli. Using the BLASTp algorithm, an iterative usher protein search was performed to identify CU fimbrial operons from 35 E. coli (and one Escherichia fergusonnii) genomes representing different pathogenic and phylogenic lineages, as well as 132 Escherichia spp. plasmids. A total of 458 CU fimbrial operons were identified, which represent 38 distinct fimbrial types based on genomic locus position and usher phylogeny. The majority of fimbrial operon types occupied a specific locus position on the E. coli chromosome; exceptions were associated with mobile genetic elements. A group of core-associated E. coli CU fimbriae were defined and include the Type 1, Yad, Yeh, Yfc, Mat, F9 and Ybg fimbriae. These genes were present as intact or disrupted operons at the same genetic locus in almost all genomes examined. Evaluation of the distribution and prevalence of CU fimbrial types among different pathogenic and phylogenic groups provides an overview of group specific fimbrial profiles and insight into the ancestry and evolution of CU fimbriae in E. coli." @default.
- W2073234876 created "2016-06-24" @default.
- W2073234876 creator A5019644976 @default.
- W2073234876 creator A5022370405 @default.
- W2073234876 creator A5059456421 @default.
- W2073234876 creator A5072033262 @default.
- W2073234876 creator A5087445309 @default.
- W2073234876 date "2013-01-30" @default.
- W2073234876 modified "2023-10-11" @default.
- W2073234876 title "Chaperone-Usher Fimbriae of Escherichia coli" @default.
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