Human Ku80/XRCC5 Antibody

  
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  • Species Reactivity
    Human
  • Specificity
    Detects human Ku80 in Western blots.
  • Source
    Polyclonal Goat IgG
  • Purification
    Antigen Affinity-purified
  • Immunogen
    E. coli-derived recombinant human Ku80
    Asn402-Lys565
    Accession # P13010
  • Formulation
    Lyophilized from a 0.2 μm filtered solution in PBS with Trehalose. *Small pack size (SP) is supplied as a 0.2 µm filtered solution in PBS.
  • Label
    Unconjugated
Applications
  •  
    Recommended
    Concentration
    Sample
  • Western Blot
    1 µg/mL
    See below
  • Immunohistochemistry
    1-15 µg/mL
    See below
Please Note: Optimal dilutions should be determined by each laboratory for each application. General Protocols are available in the Technical Information section on our website.
Data Examples
Detection of Human Ku80/XRCC5 by Western Blot. Western blot shows lysates of 293T human embryonic kidney cell line, A549 human lung carcinoma cell line, and Jurkat human acute T cell leukemia cell line. PVDF membrane was probed with 1 µg/mL of Human Ku80/XRCC5 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF5619) followed by HRP-conjugated Anti-Goat IgG Secondary Antibody (Catalog # HAF017). A specific band was detected for Ku80/XRCC5 at approximately 86 kDa (as indicated). This experiment was conducted under reducing conditions and using Immunoblot Buffer Group 1.
Immunohistochemistry
Ku80/XRCC5 in Human Breast Cancer Tissue. Ku80/XRCC5 was detected in immersion fixed paraffin-embedded sections of human breast cancer tissue using Goat Anti-Human Ku80/XRCC5 Antigen Affinity-purified Polyclonal Antibody (Catalog # AF5619) at 1 µg/mL for 1 hour at room temperature followed by incubation with the Anti-Goat IgG VisUCyte™ HRP Polymer Antibody (Catalog # VC004). Tissue was stained using DAB (brown) and counterstained with hematoxylin (blue). Specific staining was localized to nuclei. View our protocol for IHC Staining with VisUCyte HRP Polymer Detection Reagents.
Preparation and Storage
  • Reconstitution
    Reconstitute at 0.2 mg/mL in sterile PBS.
  • Shipping
    The product is shipped at ambient temperature. Upon receipt, store it immediately at the temperature recommended below. *Small pack size (SP) is shipped with polar packs. Upon receipt, store it immediately at -20 to -70 °C
  • Stability & Storage
    Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
    • 12 months from date of receipt, -20 to -70 °C as supplied.
    • 1 month, 2 to 8 °C under sterile conditions after reconstitution.
    • 6 months, -20 to -70 °C under sterile conditions after reconstitution.
Background: Ku80/XRCC5

Ku80 (Lupus Ku autoantigen protein p86; also ATP-dependent DNA helicase 2 subunit 2 and Ku86) is a ubiquitous 80 - 85 kDa nuclear protein that serves as a component of DNA-dependent protein kinase. In particular, it heterodimerizes with Ku70 to form a complex that binds DNA ends and select sequences, and which recruits DNA-PKcs for the purpose of phosphorylating multiple chromatin-bound proteins, including p53, Oct-1 and Sp-1. The Ku:DNA-PKcs complex participates in DNA repair, DNA replication, and VDJ recombination. Human Ku80 is 732 amino acids (aa) in length. It contains a Ku domain (aa 244 - 543) with a DNA binding motif (aa 257 - 268), and a C-terminal DNA-PKcs-binding sequence (aa 720 - 728). Over aa 402 - 565, Ku80 shares 77% aa identity with mouse Ku80.

  • Long Name:
    Lupus Ku Autoantigen Protein 86
  • Entrez Gene IDs:
    7520 (Human); 22596 (Mouse); 363247 (Rat)
  • Alternate Names:
    80kDa; ATP-dependent DNA helicase 2 subunit 2; ATP-dependent DNA helicase II 80 kDa subunit; CTC85; CTCBF; EC 3.6.4.-; FLJ39089; G22P2; KARP1; KARP-1; Ku80; Ku86 autoantigen related protein 1,86 kDa subunit of Ku antigen; Ku86; Ku86DNA repair protein XRCC5; KUB2; NFIV; Thyroid-lupus autoantigen; TLAA; X-ray repair complementing defective repair in Chinese hamster cells 5(double-strand-break rejoining)CTC box-binding factor 85 kDa subunit; X-ray repair complementing defective repair in Chinese hamster cells 5(double-strand-break rejoining; Ku autoantigen, 80kD); X-ray repair cross-complementing protein 5; X-ray repair, complementing defective, repair in Chinese hamster; XRCC5

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