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dc.contributor.authorArnold, Isabelle C.
dc.contributor.authorZigova, Zuzana
dc.contributor.authorHolden, Matthew
dc.contributor.authorLawley, Trevor D.
dc.contributor.authorRad, Roland
dc.contributor.authorDougan, Gordon
dc.contributor.authorFalkow, Stanley
dc.contributor.authorBentley, Stephen D.
dc.contributor.authorMueller, Anne
dc.identifier.citationArnold , I C , Zigova , Z , Holden , M , Lawley , T D , Rad , R , Dougan , G , Falkow , S , Bentley , S D & Mueller , A 2011 , ' Comparative whole genome sequence analysis of the carcinogenic bacterial model pathogen Helicobacter felis ' , Genome Biology and Evolution , vol. 3 , pp. 302-308 .
dc.identifier.otherPURE: 91761641
dc.identifier.otherPURE UUID: 23f364a6-1002-4908-8235-e6348e0d1f5f
dc.identifier.otherWOS: 000290252700028
dc.identifier.otherScopus: 79960098094
dc.identifier.otherORCID: /0000-0002-4958-2166/work/60196409
dc.description.abstractThe gram-negative bacterium Helicobacter felis naturally colonizes the gastric mucosa of dogs and cats. Due to its ability to persistently infect laboratory mice, H. felis has been used extensively to experimentally model gastric disorders induced in humans by H. pylori. We determined the 1.67 Mb genome sequence of H. felis using combined Solexa and 454 pyrosequencing, annotated the genome, and compared it with multiple previously published Helicobacter genomes. About 1,063 (63.6%) of the 1,671 genes identified in the H. felis genome have orthologues in H. pylori, its closest relative among the fully sequenced Helicobacter species. Many H. pylori virulence factors are shared by H. felis: these include the gamma-glutamyl transpeptidase GGT, the immunomodulator NapA, and the secreted enzymes collagenase and HtrA. Helicobacter felis lacks a Cag pathogenicity island and the vacuolating cytotoxin VacA but possesses a complete comB system conferring natural competence. Remarkable features of the H. felis genome include its paucity of transcriptional regulators and an extraordinary abundance of chemotaxis sensors and restriction/modification systems. Helicobacter felis possesses an episomally replicating 6.7-kb plasmid and harbors three chromosomal regions with deviating GC content. These putative horizontally acquired regions show homology and synteny with the recently isolated H. pylori plasmid pHPPC4 and homology to Campylobacter bacteriophage genes (transposases, structural, and lytic genes), respectively. In summary, the H. felis genome harbors a variety of putative mobile elements that are unique among Helicobacter species and may contribute to this pathogen's carcinogenic properties.
dc.relation.ispartofGenome Biology and Evolutionen
dc.rightsThe Author(s) 2011. Published by Oxford University Press on behalf of the Society for Molecular Biology and Evolution. This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.en
dc.subjectHelicobacter felisen
dc.subjectComparative genomicsen
dc.subjectGenome sequence analysisen
dc.subjectHorizontal gene transferen
dc.subjectMobile elementsen
dc.subjectChronic Atrophic gastritisen
dc.subjectLong-term infectionen
dc.subjectPylori infectionen
dc.subjectTransformation competenceen
dc.subjectDNA transformationen
dc.subjectQR Microbiologyen
dc.titleComparative whole genome sequence analysis of the carcinogenic bacterial model pathogen Helicobacter felisen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Medicineen
dc.contributor.institutionUniversity of St Andrews.Infection Groupen
dc.contributor.institutionUniversity of St Andrews.Biomedical Sciences Research Complexen
dc.description.statusPeer revieweden

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