• Product name
  • Description
    Goat polyclonal to DNA PKcs
  • Host species
  • Tested applications
    Suitable for: WB, IP, IHC-Pmore details
  • Species reactivity
    Reacts with: Human
    Predicted to work with: Mouse, Rat, Guinea pig, Cow, Pig, Chimpanzee, Rhesus monkey, Gorilla, Chinese hamster, Orangutan, Bat
  • Immunogen

    Synthetic peptide corresponding to Human DNA PKcs aa 4078-4128.
    Database link: P78527

  • Positive control
    • 293T, HeLa and Jurkat whole cell lysates.



Our Abpromise guarantee covers the use of ab168854 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 1/2000 - 1/10000. Predicted molecular weight: 469 kDa.
IP Use at 2-10 µg/mg of lysate.
IHC-P 1/1000 - 1/5000. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.


  • Function
    Serine/threonine-protein kinase that acts as a molecular sensor for DNA damage. Involved in DNA nonhomologous end joining (NHEJ) required for double-strand break (DSB) repair and V(D)J recombination. Must be bound to DNA to express its catalytic properties. Promotes processing of hairpin DNA structures in V(D)J recombination by activation of the hairpin endonuclease artemis (DCLRE1C). The assembly of the DNA-PK complex at DNA ends is also required for the NHEJ ligation step. Required to protect and align broken ends of DNA. May also act as a scaffold protein to aid the localization of DNA repair proteins to the site of damage. Found at the ends of chromosomes, suggesting a further role in the maintenance of telomeric stability and the prevention of chromosomal end fusion. Also involved in modulation of transcription. Recognizes the substrate consensus sequence [ST]-Q. Phosphorylates 'Ser-139' of histone variant H2AX/H2AFX, thereby regulating DNA damage response mechanism. Phosphorylates DCLRE1C, c-Abl/ABL1, histone H1, HSPCA, c-jun/JUN, p53/TP53, PARP1, POU2F1, DHX9, SRF, XRCC1, XRCC1, XRCC4, XRCC5, XRCC6, WRN, MYC and RFA2. Can phosphorylate C1D not only in the presence of linear DNA but also in the presence of supercoiled DNA. Ability to phosphorylate p53/TP53 in the presence of supercoiled DNA is dependent on C1D.
  • Sequence similarities
    Belongs to the PI3/PI4-kinase family.
    Contains 1 FAT domain.
    Contains 1 FATC domain.
    Contains 2 HEAT repeats.
    Contains 1 PI3K/PI4K domain.
    Contains 3 TPR repeats.
  • Post-translational
    Phosphorylated upon DNA damage, probably by ATM or ATR. Autophosphorylated on Thr-2609, Thr-2638 and Thr-2647. Thr-2609 is a DNA damage-inducible phosphorylation site (inducible with ionizing radiation, IR). Autophosphorylation induces a conformational change that leads to remodeling of the DNA-PK complex, requisite for efficient end processing and DNA repair.
    S-nitrosylated by GAPDH.
  • Cellular localization
  • Information by UniProt
  • Database links
  • Alternative names
    • DNA dependent protein kinase catalytic subunit antibody
    • DNA PK catalytic subunit antibody
    • DNA-dependent protein kinase catalytic subunit antibody
    • DNA-PK catalytic subunit antibody
    • DNA-PKcs antibody
    • DNAPK antibody
    • DNAPK catalytic subunit antibody
    • DNPK 1 antibody
    • DNPK1 antibody
    • Hyper radiosensitivity of murine scid mutation, complementing 1 antibody
    • Hyperradiosensitivity complementing 1, mouse, homolog of 1 antibody
    • HYRC 1 antibody
    • HYRC antibody
    • HYRC1 antibody
    • IMD26 antibody
    • p350 antibody
    • p460 antibody
    • PKRDC antibody
    • PRKDC antibody
    • PRKDC_HUMAN antibody
    • Protein Kinase DNA Activated Catalytic Polypeptide antibody
    • XRCC 7 antibody
    • XRCC7 antibody
    see all


  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human breast carcinoma tissue labelling DNA PKcs with ab168854 at 1/5000 (0.2µg/ml). Detection: DAB.
  • All lanes : Anti-DNA PKcs antibody (ab168854) at 0.1 µg/ml

    Lane 1 : 293T whole cell lysate
    Lane 2 : HeLa whole cell lysate
    Lane 3 : Jurkat whole cell lysate

    Lysates/proteins at 50 µg per lane.

    Developed using the ECL technique.

    Predicted band size: 469 kDa

    Exposure time: 10 seconds
  • Detection of DNA PKcs in Immunoprecipitates of 293T whole cell lysate (1 mg for IP, 20% of IP loaded) using ab168854 at 6 µg/mg lysate for IP (Lane 1) and at 1 µg/ml for subsequent Western blot detection. Lane 2 represents control IgG IP.
    Detection: Chemiluminescence with an exposure time of 10 seconds.


ab168854 has not yet been referenced specifically in any publications.

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