FC-FP
H
Endogenous
Rabbit IgG
#P78527
5591
Product Information
Product Usage Information
| Application | Dilution |
|---|---|
| Flow Cytometry (Fixed/Permeabilized) | 1:50 |
Storage
Specificity / Sensitivity
Species Reactivity:
Human
Source / Purification
Monoclonal antibody is produced by immunizing animals with a synthetic peptide corresponding to residues surrounding Pro608 of human DNA-PKcs protein.
Product Description
Background
DNA-dependent protein kinase (DNA-PK) is an important factor in the repair of double-stranded breaks in DNA. Cells lacking DNA-PK or in which DNA-PK is inhibited fail to show proper nonhomologous end-joining (NHEJ) (1-7). DNA-PK is composed of two DNA-binding subunits (Ku70 and Ku86) and one 450 kDa catalytic subunit (DNA-PKcs) (8). It is thought that a heterodimer of Ku70 and Ku86 binds to double-stranded DNA broken ends before DNA-PKcs binds and is activated (1,9). Activated DNA-PKcs is a serine/threonine kinase that has been shown to phosphorylate a number of proteins in vitro, including p53, transcription factors, RNA polymerase, and Ku70/Ku86 (10,11). DNA-PKcs autophosphorylation at multiple sites, including Thr2609 and Ser2056, results in an inactivation of DNA-PK kinase activity and NHEJ ability (12,13). It has been demonstrated, however, that DNA-PK preferentially phosphorylates substrates before it autophosphorylates, suggesting that DNA-PK autophosphorylation may play a role in disassembly of the DNA repair machinery (14,15). Autophosphorylation at Thr2609 has also been shown to be required for DNA-PK-mediated double-strand break repair, and phosphorylated DNA-PK co-localizes with H2A.X and 53BP1 at sites of DNA damage (16). Phosphorylation at Ser2056 occurs in response to double-stranded DNA breaks and ATM activation (17).
- Gottlieb, T.M. and Jackson, S.P. (1993) Cell 72, 131-42.
- Hartley, K.O. et al. (1995) Cell 82, 849-56.
- Rosenzweig, K.E. et al. (1997) Clin Cancer Res 3, 1149-56.
- Jackson, S.P. and Jeggo, P.A. (1995) Trends Biochem Sci 20, 412-5.
- Roth, D.B. et al. (1995) Curr Biol 5, 496-9.
- Baumann, P. and West, S.C. (1998) Proc Natl Acad Sci U S A 95, 14066-70.
- Chen, S. et al. (2001) J Biol Chem 276, 24323-30.
- Jeggo, P.A. (1997) Mutat Res 384, 1-14.
- Suwa, A. et al. (1994) Proc Natl Acad Sci U S A 91, 6904-8.
- Anderson, C.W. and Lees-Miller, S.P. (1992) Crit Rev Eukaryot Gene Expr 2, 283-314.
- Kuhn, A. et al. (1995) Genes Dev 9, 193-203.
- Chan, D.W. and Lees-Miller, S.P. (1996) J Biol Chem 271, 8936-41.
- Douglas, P. et al. (2002) Biochem. J. 368, 243-51.
- Lees-Miller, S.P. et al. (1992) Mol Cell Biol 12, 5041-9.
- Jackson, S.P. et al. (1990) Cell 63, 155-65.
- Chan, D.W. et al. (2002) Genes Dev 16, 2333-8.
- Yajima, H. et al. (2009) J Mol Biol 385, 800-10.
Species Reactivity
Species reactivity is determined by testing in at least one approved application (e.g., western blot).
Applications Key
FC-FP: Flow Cytometry (Fixed/Permeabilized)
Cross-Reactivity Key
H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected
Trademarks and Patents
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