Rabbit Recombinant Monoclonal DNA PKcs phospho S2056 antibody - conjugated to Alexa Fluor® 647.
pH: 7.4
Preservative: 0.02% Sodium azide
Constituents: 68% PBS, 30% Glycerol (glycerin, glycerine), 1% BSA
| Application | Reactivity | Dilution info | Notes |
|---|---|---|---|
Application Target Binding Affinity | Reactivity Expected | Dilution info - | Notes - |
Application Antibody Labelling | Reactivity Expected | Dilution info - | Notes - |
Serine/threonine-protein kinase that acts as a molecular sensor for DNA damage (PubMed:11955432, PubMed:12649176, PubMed:14734805, PubMed:33854234). Involved in DNA non-homologous end joining (NHEJ) required for double-strand break (DSB) repair and V(D)J recombination (PubMed:11955432, PubMed:12649176, PubMed:14734805, PubMed:33854234, PubMed:34352203). Must be bound to DNA to express its catalytic properties (PubMed:11955432). Promotes processing of hairpin DNA structures in V(D)J recombination by activation of the hairpin endonuclease artemis (DCLRE1C) (PubMed:11955432). Recruited by XRCC5 and XRCC6 to DNA ends and is required to (1) protect and align broken ends of DNA, thereby preventing their degradation, (2) and sequester the DSB for repair by NHEJ (PubMed:11955432, PubMed:12649176, PubMed:14734805, PubMed:15574326, PubMed:33854234). Act as a scaffold protein to aid the localization of DNA repair proteins to the site of damage (PubMed:11955432, PubMed:12649176, PubMed:14734805, PubMed:15574326). The assembly of the DNA-PK complex at DNA ends is also required for the NHEJ ligation step (PubMed:11955432, PubMed:12649176, PubMed:14734805, PubMed:15574326). Found at the ends of chromosomes, suggesting a further role in the maintenance of telomeric stability and the prevention of chromosomal end fusion (By similarity). Also involved in modulation of transcription (PubMed:11955432, PubMed:12649176, PubMed:14734805, PubMed:15574326). As part of the DNA-PK complex, involved in the early steps of ribosome assembly by promoting the processing of precursor rRNA into mature 18S rRNA in the small-subunit processome (PubMed:32103174). Binding to U3 small nucleolar RNA, recruits PRKDC and XRCC5/Ku86 to the small-subunit processome (PubMed:32103174). Recognizes the substrate consensus sequence [ST]-Q (PubMed:11955432, PubMed:12649176, PubMed:14734805, PubMed:15574326). Phosphorylates 'Ser-139' of histone variant H2AX, thereby regulating DNA damage response mechanism (PubMed:14627815, PubMed:16046194). Phosphorylates ASF1A, DCLRE1C, c-Abl/ABL1, histone H1, HSPCA, c-jun/JUN, p53/TP53, PARP1, POU2F1, DHX9, FH, SRF, NHEJ1/XLF, XRCC1, XRCC4, XRCC5, XRCC6, WRN, MYC and RFA2 (PubMed:10026262, PubMed:10467406, PubMed:11889123, PubMed:12509254, PubMed:14599745, PubMed:14612514, PubMed:14704337, PubMed:15177042, PubMed:1597196, PubMed:16397295, PubMed:18644470, PubMed:2247066, PubMed:2507541, PubMed:26237645, PubMed:26666690, PubMed:28712728, PubMed:29478807, PubMed:30247612, PubMed:8407951, PubMed:8464713, PubMed:9139719, PubMed:9362500). Can phosphorylate C1D not only in the presence of linear DNA but also in the presence of supercoiled DNA (PubMed:9679063). Ability to phosphorylate p53/TP53 in the presence of supercoiled DNA is dependent on C1D (PubMed:9363941). Contributes to the determination of the circadian period length by antagonizing phosphorylation of CRY1 'Ser-588' and increasing CRY1 protein stability, most likely through an indirect mechanism (By similarity). Plays a role in the regulation of DNA virus-mediated innate immune response by assembling into the HDP-RNP complex, a complex that serves as a platform for IRF3 phosphorylation and subsequent innate immune response activation through the cGAS-STING pathway (PubMed:28712728). Also regulates the cGAS-STING pathway by catalyzing phosphorylation of CGAS, thereby impairing CGAS oligomerization and activation (PubMed:33273464). Also regulates the cGAS-STING pathway by mediating phosphorylation of PARP1 (PubMed:35460603).
HYRC, HYRC1, PRKDC, DNA-dependent protein kinase catalytic subunit, DNA-PK catalytic subunit, DNA-PKcs, DNPK1, p460
Rabbit Recombinant Monoclonal DNA PKcs phospho S2056 antibody - conjugated to Alexa Fluor® 647.
pH: 7.4
Preservative: 0.02% Sodium azide
Constituents: 68% PBS, 30% Glycerol (glycerin, glycerine), 1% BSA
This product is a recombinant monoclonal antibody, which offers several advantages including:
For more information, read more on recombinant antibodies.
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.
This conjugated primary antibody is released using a quantitative quality control method that evaluates binding affinity post-conjugation and efficiency of antibody labeling.
For suitable applications and species reactivity, please refer to the unconjugated version of this clone. This conjugated antibody is eligible for the Abcam trial program.
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.
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.
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.
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This species and application combination has not been tested, but we predict it will work based on strong homology. However, this combination is not covered by our product promise.
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