|Application ||WB, IHC, IF|
|Calculated MW||469089 Da|
|Other Names||DNA-dependent protein kinase catalytic subunit, DNA-PK catalytic subunit, DNA-PKcs, DNPK1, p460, PRKDC, HYRC, HYRC1|
|Target/Specificity||A synthetic peptide corresponding to residues in the C-term of human DNA-PK was used as immunogen. This antibody may detect splice isoform 2.|
|Format||50 mM Tris-Glycine (pH 7.4), 0.15 M NaCl, 40% Glycerol, 0.01% sodium azide and 0.05% BSA.|
|Storage||Maintain refrigerated at 2-8°C for up to 6 months. For long term storage store at -20°C in small aliquots to prevent freeze-thaw cycles.|
|Precautions||DNA-PK/PRKDC Antibody is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Serine/threonine-protein kinase that acts as a molecular sensor for DNA damage. Involved in DNA non-homologous 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. 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 machanism. Interacts with CRY1 and CRY2; negatively regulates CRY1 phosphorylation.|
|Cellular Location||Nucleus Nucleus, nucleolus|
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Provided below are standard protocols that you may find useful for product applications.
DNA-activated serine/threonine protein kinase (DNA-PK) is a nuclear protein kinase that is involved in DNA nonhomologous end joining (NHEJ) required for double- strand brake repair and V(D)J recombination. DNA-PK is composed of a large catalytic subunit of ~470 kDa (DNA-PKcs) and a DNA binding heterodimer of approximately 70- and 80-kDa subunits called Ku. (1-2). Autophosphorylation of DNA-PK correlates with loss of protein kinase activity and dissociation of the DNA-PKcs-Ku complex. DNA-PK phosphorylates Hsp90, p53 and c-Jun (3-4).
1. Anderson, C. W., and Lees-Miller, S. P. (1992) Crit. Rev. Eukaryotic Gene Expression 2, 283-314
2. Anderson, C. W., and Carter, T. H. (1996) Curr. Topics Microbiol. Immunol. 217, 91-111
3. Lees-Miller, S.P., Sakaguchi, K., Ullrich, S.J., Appella, E. and Anderson, C.W. (1992) Mol. Cell. Biol. 12, 5041
4. Bannister, A.J., Gottlieb, T.M., Kouzarides, T. and Jackson, S.P. (1993) Nucleic Acids Res. 21, 1289
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