A Conserved Acetyl Esterase Domain Targets Diverse Bacteriophages to the Vi Capsular Receptor of Salmonella enterica Serovar Typhi

Pickard, Derek, Toribio, Ana Luisa, Petty, Nicola K., van Tonder, Andries, Yu, Lu, Goulding, David, Barrell, Bart, Rance, Richard, Harris, David, Wetter, Michael, Wain, John, Choudhary, Jyoti, Thomson, Nicholas and Dougan, Gordon (2010) A Conserved Acetyl Esterase Domain Targets Diverse Bacteriophages to the Vi Capsular Receptor of Salmonella enterica Serovar Typhi. Journal of Bacteriology, 192 (21). pp. 5746-5754. ISSN 0021-9193

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Abstract

A number of bacteriophages have been identified that target the Vi capsular antigen of Salmonella enterica serovar Typhi. Here we show that these Vi phages represent a remarkably diverse set of phages belonging to three phage families, including Podoviridae and Myoviridae. Genome analysis facilitated the further classification of these phages and highlighted aspects of their independent evolution. Significantly, a conserved protein domain carrying an acetyl esterase was found to be associated with at least one tail fiber gene for all Vi phages, and the presence of this domain was confirmed in representative phage particles by mass spectrometric analysis. Thus, we provide a simple explanation and paradigm of how a diverse group of phages target a single key virulence antigen associated with this important human-restricted pathogen.

Item Type: Article
Faculty \ School: Faculty of Medicine and Health Sciences > Norwich Medical School
Depositing User: Rhiannon Harvey
Date Deposited: 13 Jul 2011 09:36
Last Modified: 11 May 2020 23:43
URI: https://ueaeprints.uea.ac.uk/id/eprint/33565
DOI: 10.1128/JB.00659-10

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