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dc.contributor.authorKintz, E
dc.contributor.authorDavies, MR
dc.contributor.authorHammarloef, DL
dc.contributor.authorCanals, R
dc.contributor.authorHinton, JCD
dc.contributor.authorvan der Woude, MW
dc.date.accessioned2021-02-05T00:57:00Z
dc.date.available2021-02-05T00:57:00Z
dc.date.issued2015-04-01
dc.identifier.citationKintz, E., Davies, M. R., Hammarloef, D. L., Canals, R., Hinton, J. C. D. & van der Woude, M. W. (2015). A BTP1 prophage gene present in invasive non-typhoidal Salmonella determines composition and length of the O-antigen of the lipopolysaccharide. MOLECULAR MICROBIOLOGY, 96 (2), pp.263-275. https://doi.org/10.1111/mmi.12933.
dc.identifier.issn0950-382X
dc.identifier.urihttp://hdl.handle.net/11343/260217
dc.description.abstractSalmonella Typhimurium isolate D23580 represents a recently identified ST313 lineage of invasive non-typhoidal Salmonellae (iNTS). One of the differences between this lineage and other non-iNTS S. Typhimurium isolates is the presence of prophage BTP1. This prophage encodes a gtrC gene, implicated in O-antigen modification. GtrC(BTP) (1) is essential for maintaining O-antigen length in isolate D23580, since a gtr(BTP) (1) mutant yields a short O-antigen. This phenotype can be complemented by gtrC(BTP) (1) or very closely related gtrC genes. The short O-antigen of the gtr(BTP) (1) mutant was also compensated by deletion of the BTP1 phage tailspike gene in the D23580 chromosome. This tailspike protein has a putative endorhamnosidase domain and thus may mediate O-antigen cleavage. Expression of the gtrC(BTP) (1) gene is, in contrast to expression of many other gtr operons, not subject to phase variation and transcriptional analysis suggests that gtrC is produced under a variety of conditions. Additionally, GtrC(BTP) (1) expression is necessary and sufficient to provide protection against BTP1 phage infection of an otherwise susceptible strain. These data are consistent with a model in which GtrC(BTP) (1) mediates modification of the BTP1 phage O-antigen receptor in lysogenic D23580, and thereby prevents superinfection by itself and other phage that uses the same O-antigen co-receptor.
dc.languageEnglish
dc.publisherWILEY-BLACKWELL
dc.rights.urihttps://creativecommons.org/licenses/by/4.0
dc.titleA BTP1 prophage gene present in invasive non-typhoidal Salmonella determines composition and length of the O-antigen of the lipopolysaccharide
dc.typeJournal Article
dc.identifier.doi10.1111/mmi.12933
melbourne.affiliation.departmentMicrobiology and Immunology
melbourne.affiliation.facultyMedicine, Dentistry & Health Sciences
melbourne.source.titleMolecular Microbiology
melbourne.source.volume96
melbourne.source.issue2
melbourne.source.pages263-275
dc.rights.licenseCC BY
melbourne.elementsid1098301
melbourne.contributor.authorDavies, Mark
dc.identifier.eissn1365-2958
melbourne.accessrightsOpen Access


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