Abcam, ab18192, Anti-DNA PKcs (phospho S2056) antibody

Size: 100µg
Anti-DNA PKcs (phospho S2056) antibody (ab18192) is a rabbit polyclonal antibody detecting DNA PKcs in Western Blot, ICC/IF, ELISA . Suitable for Human . - KO validated for confirmed specificity - Over 190 publications - Trusted since 2006
Key facts
Host species:Rabbit,
Clonality:Polyclonal,
Isotype:IgG,
Carrier free:No,
Reacts with:Human,
Applications:ICC/IF, ELISA, WBSee reactivity dataSee the reactivity data table below for information on validated species and application combinations.,
Immunogen:This product was produced with the following immunogens:The exact immunogen used to generate this antibody is proprietary information.The exact immunogen used to generate this antibody is proprietary information.The exact immunogen used to generate this antibody is proprietary information.,
Specificity:From Jan 2024, QC testing of replenishment batches of this polyclonal changed. All tested and expected application and reactive species combinations are still covered by our Abcam product promise. However, we no longer test all applications. For more information on a specific batch, please contact our Scientific Support who will be happy to help. This antibody specifically recognizes a band at ~460 kDa in HeLa cells that have been treated with ionizing radiation, that is not detected in untreated cells. This band can also be competed away by the immunizing modified peptide, but not the unmodified peptide containing the same amino acid sequence.All batches of this antibody are screened in ELISA and show high titres against the immunising peptide. Reactivity with the unmodified DNA PKcs peptide is minimal.We now predict that this antibody will cross react with mouse DNA PKcs, as the mouse sequence has been more extensively reviewed on uniprot (P97313), now indicating that mouse DNA PKcs S2053, which corresponds to human S2056, is also phosphorylated. We welcome any feedback from researchers who have used this antibody with mouse samples.

Product details:
What is this antibody validated in?
Anti-DNA PKcs (phospho S2056) antibody (ab18192) is a rabbit polyclonal antibody and is validated for use in Western Blot (WB), Immunocytochemistry/immunofluorescence (ICC/IF), ELISA in Human samples.
What is the molecular weight of DNA PKcs?
Anti-DNA PKcs (phospho S2056) (ab18192) specifically detects a band for DNA PKcs (UniProt: P78527) at a molecular weight of 460kDa.
Trusted by the scientific community
Anti-DNA PKcs (phospho S2056) (ab18192) was first used in a scientific publication in 2006 and has been cited over 190 times in peer-reviewed journals.
Reviewed by scientists
Anti-DNA PKcs (phospho S2056) (ab18192) has over 10 independent reviews from customers.
Specificity confirmed
The specificity of Anti-DNA PKcs (phospho S2056) antibody (ab18192) has been confirmed by Western blot testing in DNA PKcs Knockout HAP1 cells.

Properties and Storage Information:
Form-Liquid, Purification technique-Affinity purification Immunogen, Storage buffer-pH: 7.4Preservative: 0.02% Sodium azideConstituents: PBS, 1% BSA, Shipped at conditions-Blue Ice, Appropriate short-term storage duration-1-2 weeks, Appropriate short-term storage conditions-+4°C, Appropriate long-term storage conditions--20°C, Aliquoting information-Upon delivery aliquot, Storage information-Avoid freeze / thaw cycle

Supplementary Information:
This supplementary information is collated from multiple sources and compiled automatically.
DNA-dependent protein kinase catalytic subunit often abbreviated as DNA-PKcs or PKcs is an important component in the cellular machinery responsible for DNA repair. This protein weighs approximately 470 kDa and is predominantly expressed in various tissue types with higher levels found in lymphoid tissues. The DNA-PKcs functions as a serine/threonine protein kinase and becomes active upon binding to DNA contributing to its role in maintaining genome integrity.
Biological function summary
DNA-PKcs plays an essential role in the non-homologous end joining (NHEJ) repair pathway which repairs double-strand breaks in DNA. DNA-PKcs forms a complex with the Ku70/80 heterodimer serving as a critical component of the DNA repair mechanism. This complex recognizes DNA ends facilitates their synapsis and activates other enzymes involved in ligating the broken DNA strands therefore promoting cellular survival following DNA damage.
Pathways
DNA-PKcs deeply integrates into the DNA damage response pathway. It collaborates closely with proteins such as ATM (ataxia-telangiectasia mutated) to sense DNA damage and initiate repair. DNA-PKcs is involved in V(D)J recombination vital for the generation of diverse antibodies in immune cells. Its activity is essential for coordinating with other proteins including XRCC4 and Ligase IV to ensure efficient DNA repair processes are executed.
Defects in DNA-PKcs are linked to severe combined immunodeficiency (SCID) due to its central role in V(D)J recombination. Dysfunction in its pathway also relates to cancer where impaired DNA repair mechanisms substantially increase genomic instability leading to tumorigenesis. DNA-PKcs interacts with other proteins like BRCA1 and p53 in tumors where its overexpression or mutations can contribute to resistance against radiation and chemotherapeutic agents. These interactions highlight the importance of DNA-PK inhibitors as potential therapeutic strategies in oncology.