DNA binding proteins of the filamentous phages CTXphi and VGJphi of Vibrio cholerae.

Academic Article


  • The native product of open reading frame 112 (orf112) and a recombinant variant of the RstB protein, encoded by Vibrio cholerae pathogen-specific bacteriophages VGJphi and CTXphi, respectively, were purified to more than 90% homogeneity. Orf112 protein was shown to specifically bind single-stranded genomic DNA of VGJphi; however, RstB protein unexpectedly bound double-stranded DNA in addition to the single-stranded genomic DNA. The DNA binding properties of these proteins may explain their requirement for the rolling circle replication of the respective phages and RstB's requirement for single-stranded-DNA chromosomal integration of CTXphi phage dependent on XerCD recombinases.
  • Published In


  • Attachment Sites, Microbiological, Bacteriophages, DNA, DNA, Single-Stranded, DNA-Binding Proteins, Electrophoresis, Polyacrylamide Gel, Gene Expression Regulation, Viral, Inovirus, Open Reading Frames, Recombinant Proteins, Vibrio cholerae, Viral Proteins, Virus Integration
  • Digital Object Identifier (doi)

    Author List

  • Falero A; Caballero A; Ferrán B; Izquierdo Y; Fando R; Campos J
  • Start Page

  • 5873
  • End Page

  • 5876
  • Volume

  • 191
  • Issue

  • 18