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Western blot analysis of Ku80 on a A431 cell lysate (Human epithelial carcinoma; ATCC CRL-1555). Lane 1: 1:500, lane 2: 1:1000, lane 3: 1:2000 dilution of the mouse anti-human Ku80 antibody.
Immunofluorescence staining of HeLa cells (Human cervical epitheloid carcinoma; ATCC CCL-2.2).
BD Transduction Laboratories™ Purified Mouse Anti-Human Ku80
BD Transduction Laboratories™ Purified Mouse Anti-Human Ku80
Regulatory Status Legend
Any use of products other than the permitted use without the express written authorization of Becton, Dickinson and Company is strictly prohibited.
Preparation And Storage
Recommended Assay Procedures
Western blot: Please refer to http://www.bdbiosciences.com/pharmingen/protocols/Western_Blotting.shtml
Product Notices
- Since applications vary, each investigator should titrate the reagent to obtain optimal results.
- Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
- Caution: Sodium azide yields highly toxic hydrazoic acid under acidic conditions. Dilute azide compounds in running water before discarding to avoid accumulation of potentially explosive deposits in plumbing.
- Source of all serum proteins is from USDA inspected abattoirs located in the United States.
Companion Products
DNA-dependent protein kinase (DNA-PK) is a trimeric enzyme that contains a catalytic subunit of 350 kDa (DNA-PKcs) and a heterodimeric regulatory subunit of 70 kDa (Ku70) and 86 kDa (Ku80). DNA-PKcs is inactive alone and depends on the regulatory subunit for subcellular localization and kinase activity. The DNA-PKcs/Ku70/Ku80 complex is involved in V(D)J recombination and DNA double-stranded break repair. Ku70 and Ku80 are abundant nuclear DNA-binding proteins. Besides functioning in a complex with DNA-PKcs, Ku proteins may act in multiple cellular processes including transcriptional regulation, ATPase and helicase activity, alteration in chromatin structure, cell cycle regulation, and maintenance of telomere length. In rat fibroblasts, Ku80 overexpression leads to hypermethylation and silencing of metallothionein gene expression. Ku70-/- and Ku80-/- cells are less resistant to anticancer drug-induced apoptosis, suggesting a role for Ku proteins in the prevention of apoptotic signaling. Thus, Ku70 and Ku80 may have multiple roles during DNA transcription, repair, and maintenance depending on the protein interactions that are involved.
Development References (3)
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Kim SH, Kim D, Han JS, et al. Ku autoantigen affects the susceptibility to anticancer drugs. Cancer Res. 1999; 59(16):4012-4017. (Biology). View Reference
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Majumder S, Ghoshal K, Li Z, Jacob ST. Hypermethylation of metallothionein-I promoter and suppression of its induction in cell lines overexpressing the large subunit of Ku protein. J Biol Chem. 1999; 274(40):28584-28589. (Biology). View Reference
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Smith GC, Jackson SP. The DNA-dependent protein kinase.. Genes Dev. 1999; 13(8):916-34. (Biology). View Reference
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Comparisons, where applicable, are made against older BD Technology, manual methods or are general performance claims. Comparisons are not made against non-BD technologies, unless otherwise noted.
For Research Use Only. Not for use in diagnostic or therapeutic procedures.