DTDP-rhamnosyl transferase RfbF, is a newfound receptor-related regulatory protein for phage phiYe-F10 specific for Yersinia enterocolitica serotype O:3

Sci Rep. 2016 Mar 11:6:22905. doi: 10.1038/srep22905.

Abstract

Bacteriophages and their hosts are continuously engaged in evolutionary competition. Here we isolated a lytic phage phiYe-F10 specific for Yersinia enterocolitica serotype O:3. We firstly described the phage receptor was regulated by DTDP-rhamnosyl transferase RfbF, encoded within the rfb cluster that was responsible for the biosynthesis of the O antigens. The deletion of DTDP-rhamnosyl transferase RfbF of wild type O:3 strain caused failure in phiYe-F10 adsorption; however, the mutation strain retained agglutination with O:3 antiserum; and complementation of its mutant converted its sensitivity to phiYe-F10. Therefore, DTDP-rhamnosyl transferase RfbF was responsible for the phage infection but did not affect recognition of Y. enterocolitica O:3 antiserum. Further, the deletions in the putative O-antigen biosynthesis protein precursor and outer membrane protein had no effect on sensitivity to phiYe-F10 infection. However, adsorption of phages onto mutant HNF10-ΔO-antigen took longer time than onto the WT, suggesting that deletion of the putative O-antigen biosynthesis protein precursor reduced the infection efficiency.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amino Acid Sequence / genetics
  • Bacteriophages / genetics*
  • Bacteriophages / immunology
  • DNA Transposable Elements / genetics
  • Mutagenesis, Insertional
  • Mutation
  • Nucleoside Diphosphate Sugars / metabolism
  • O Antigens / biosynthesis*
  • O Antigens / genetics
  • O Antigens / immunology
  • Serogroup
  • Thymine Nucleotides / metabolism
  • Transferases / genetics*
  • Transferases / immunology
  • Transferases / metabolism
  • Yersinia enterocolitica / enzymology
  • Yersinia enterocolitica / genetics*
  • Yersinia enterocolitica / immunology

Substances

  • DNA Transposable Elements
  • Nucleoside Diphosphate Sugars
  • O Antigens
  • Thymine Nucleotides
  • thymidine diphosphate rhamnose
  • Transferases