• Product nameAnti-Ku80 antibody
    See all Ku80 primary antibodies
  • Description
    Rabbit polyclonal to Ku80
  • Tested applicationsSuitable for: WB, IHC-P, ICC/IFmore details
  • Species reactivity
    Reacts with: Human
  • Immunogen

    Recombinant fragment, corresponding to a sequence within amino acids 315-563 of Human Ku80 (NP_066964).

  • Positive control
    • 293T, A431, H1299, HeLaS3, HepG2, MOLT4 and Raji lysates HeLa cells (IF) Cal27 Xenograft tissue (IHC-P)


  • FormLiquid
  • Storage instructionsShipped at 4°C. Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
  • Storage bufferPreservative: 0.01% Thimerosal (merthiolate)
    Constituents: 10% Glycerol, 0.1M Tris, 0.1M Glycine, pH 7.0
  • Concentration information loading...
  • PurityImmunogen affinity purified
  • ClonalityPolyclonal
  • IsotypeIgG
  • Research areas


Our Abpromise guarantee covers the use of ab97433 in the following tested applications.

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

Application Abreviews Notes
WB 1/500 - 1/3000. Predicted molecular weight: 83 kDa.
IHC-P 1/100 - 1/500.
ICC/IF 1/100 - 1/200.


  • FunctionSingle stranded DNA-dependent ATP-dependent helicase. Has a role in chromosome translocation. The DNA helicase II complex binds preferentially to fork-like ends of double-stranded DNA in a cell cycle-dependent manner. It works in the 3'-5' direction. Binding to DNA may be mediated by XRCC6. Involved in DNA non-homologous end joining (NHEJ) required for double-strand break repair and V(D)J recombination. The XRCC5/6 dimer acts as regulatory subunit of the DNA-dependent protein kinase complex DNA-PK by increasing the affinity of the catalytic subunit PRKDC to DNA by 100-fold. The XRCC5/6 dimer is probably involved in stabilizing broken DNA ends and bringing them together. The assembly of the DNA-PK complex to DNA ends is required for the NHEJ ligation step. In association with NAA15, the XRCC5/6 dimer binds to the osteocalcin promoter and activates osteocalcin expression. The XRCC5/6 dimer probably also acts as a 5'-deoxyribose-5-phosphate lyase (5'-dRP lyase), by catalyzing the beta-elimination of the 5' deoxyribose-5-phosphate at an abasic site near double-strand breaks. XRCC5 probably acts as the catalytic subunit of 5'-dRP activity, and allows to 'clean' the termini of abasic sites, a class of nucleotide damage commonly associated with strand breaks, before such broken ends can be joined. The XRCC5/6 dimer together with APEX1 acts as a negative regulator of transcription.
  • Sequence similaritiesBelongs to the ku80 family.
    Contains 1 Ku domain.
  • Developmental stageExpression increases during promyelocyte differentiation.
  • DomainThe EEXXXDDL motif is required for the interaction with catalytic subunit PRKDC and its recruitment to sites of DNA damage.
  • Post-translational
    Phosphorylated on serine residues. Phosphorylation by PRKDC may enhance helicase activity.
  • Cellular localizationNucleus. Chromosome.
  • Information by UniProt
  • Database links
  • Alternative names
    • 86 kDa subunit of Ku antigen antibody
    • ATP dependent DNA helicase 2 subunit 2 antibody
    • ATP dependent DNA helicase II 80 kDa subunit antibody
    • ATP dependent DNA helicase II 86 Kd subunit antibody
    • ATP dependent DNA helicase II antibody
    • ATP-dependent DNA helicase 2 subunit 2 antibody
    • ATP-dependent DNA helicase II 80 kDa subunit antibody
    • CTC box binding factor 85 kDa antibody
    • CTC box-binding factor 85 kDa subunit antibody
    • CTC85 antibody
    • CTCBF antibody
    • DNA repair protein XRCC5 antibody
    • KARP 1 antibody
    • KARP1 antibody
    • Ku 80 antibody
    • Ku autoantigen 80kDa antibody
    • Ku80 antibody
    • Ku86 antibody
    • Ku86 autoantigen related protein 1 antibody
    • KUB 2 antibody
    • KUB2 antibody
    • Lupus Ku autoantigen protein p86 antibody
    • NFIV antibody
    • Nuclear factor IV antibody
    • Thyroid lupus autoantigen antibody
    • Thyroid-lupus autoantigen antibody
    • TLAA antibody
    • X ray repair complementing defective repair in Chinese hamster cells 5 (double strand break rejoining) antibody
    • X-ray repair complementing defective repair in Chinese hamster cells 5 (double-strand-break rejoining) antibody
    • X-ray repair cross-complementing protein 5 antibody
    • Xray repair complementing defective repair in Chinese hamster cells 5 antibody
    • XRCC 5 antibody
    • XRCC5 antibody
    • XRCC5_HUMAN antibody
    see all

Anti-Ku80 antibody images

  • Anti-Ku80 antibody (ab97433) at 1/1000 dilution + MOLT4 whole cell lysate at 30 µg

    Predicted band size : 83 kDa
  • ab97433 at 1/200 dilution staining Ku80 in HeLa cells by immunofluorescence, paraformaldehyde fixed. Lower image is costained with Hoechst 33342.
  • ab97433 at 1/100 dilution staining Ku80 in Cal27 Xenograft by Immunohistochemistry, Paraffin-embedded tissue.

References for Anti-Ku80 antibody (ab97433)

ab97433 has not yet been referenced specifically in any publications.

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