title: Sequence analysis of Escherichia coli O157:H7 bacteriophage PhiV10 and identification of a phage-encoded immunity protein that modifies the O157 antigen.
abstract: Bacteriophage PhiV10 is a temperate phage, which specifically infects Escherichia coli O157:H7. The nucleotide sequence of the PhiV10 genome is 39 104 bp long and contains 55 predicted genes. PhiV10 is closely related to two previously sequenced phages, the Salmonella enterica serovar Anatum (Group E1) phage epsilon15 and a prophage from E. coli APEC O1. The attachment site of PhiV10, like those of its two closest relatives, overlaps the 3' end of guaA in the host chromosome. PhiV10 encodes an O-acetyltransferase, which modifies the O157 antigen. This modification is sufficient to block PhiV10 superinfection, indicating that the O157 antigen is most likely the PhiV10 receptor.
authors.affiliation: Food Science Department, Purdue University, West Lafayette, IN 47907-2009, USA.
authors.forename: Lynda L
authors.initials: LL
authors.lastname: Perry
authors.forename: Phillip
authors.initials: P
authors.lastname: SanMiguel
authors.forename: Udit
authors.initials: U
authors.lastname: Minocha
authors.forename: Anton I
authors.initials: AI
authors.lastname: Terekhov
authors.forename: Mindy L
authors.initials: ML
authors.lastname: Shroyer
authors.forename: Leigh A
authors.initials: LA
authors.lastname: Farris
authors.forename: Nathan
authors.initials: N
authors.lastname: Bright
authors.forename: Bradley L
authors.initials: BL
authors.lastname: Reuhs
authors.forename: Bruce M
authors.initials: BM
authors.lastname: Applegate
mesh_terms: D000123:Acetyltransferases / Q000378:metabolism*; D001287:Attachment Sites, Microbiological; D003090:Coliphages / Q000235:genetics*; D004279:DNA, Viral / Q000737:chemistry / Q000235:genetics*; D019453:Escherichia coli O157 / Q000276:immunology* / Q000821:virology*; D023061:Gene Order; D005814:Genes, Viral; D019081:O Antigens / Q000378:metabolism*; D039002:Prophages / Q000235:genetics; D017422:Sequence Analysis, DNA; D017385:Sequence Homology; D026801:Synteny; D014764:Viral Proteins / Q000378:metabolism*
chemical_list: D004279:DNA, Viral; D019081:O Antigens; D014764:Viral Proteins; D000123:Acetyltransferases