Recombinant E. coli RuvA protein (Active) (ab63819)


  • Product nameRecombinant E. coli RuvA protein (Active)
  • Protein lengthFull length protein


  • NatureRecombinant
  • SourceEscherichia coli
  • Amino Acid Sequence
    • SpeciesEscherichia coli

Associated products


Our Abpromise guarantee covers the use of ab63819 in the following tested applications.

The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.

  • Applications


    Functional Studies

  • Purity> 90 % SDS-PAGE.
    purified by methods such as chromatography
  • FormLiquid
  • Additional notes

    This protein may be suitable for the following applications. 1) Studies on homologous recombination mechanism. 2) For SNP analysis. 3) Incorporation to DNA circuit. 4) Recognition and identification of cross-like DNA.

  • Concentration information loading...

Preparation and Storage

  • Stability and Storage

    Shipped at 4°C. Upon delivery aliquot and store at -20°C. Avoid freeze / thaw cycles.

    Preservative: None
    Constituents: 50% Glycerol, 5mM Beta mercaptoethanol, 2mM EDTA, 100mM Sodium chloride, 10mM Tris HCl, pH 7.5

    This product is an active protein and may elicit a biological response in vivo, handle with caution.

General Info

  • Alternative names
    • Holliday junction ATP dependent DNA helicase ruvA
    • Holliday junction DNA helicase RuvA
    • Ruv A
  • RelevanceIn Escherichia coli, the RuvA, RuvB and RuvC proteins are required for the late stages of homologous recombination and DNA repair. They are involved in processing the Holliday junction during homologous recombination. RuvA protein binds to both single-stranded and double-stranded DNA. RuvB protein has weak ATPase activity. RuvA bound to DNA greatly enhances ATPase activity of RuvB. UV-irradiation to supercoiled DNA further enhances the stimulatory effect of RuvA on the RuvB ATPase activity. In the presence of ATP the RuvA-RuvB complex has an activity that renatures cruciform structures formed by heating and gradually cooling supercoiled DNA with an inverted repeat. RuvA and RuvB promote branch migration whereas RuvC resolves junctions by endonucleolytic cleavage. Moreover RuvAB stimulate Holliday junction resolution by RuvC. The RuvA-RuvB complex interacts with an irregular conformation in damaged DNA and induces conformational changes in DNA using energy provided by ATP hydrolysis, so that it facilitates DNA repair, recombination and error prone replication. RuvABC proteins are responsible for the occurrence of DSBs at arrested replication forks. In cells proficient for RecBC, RuvAB is uncoupled from RuvC and DSBs may be prevented.

Recombinant E. coli RuvA protein (Active) images

  • SDS Page analysis of ab63819

References for Recombinant E. coli RuvA protein (Active) (ab63819)

ab63819 has not yet been referenced specifically in any publications.

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