| Field | Specification |
|---|---|
| Target | |
| Alternative names | X-ray repair cross-complementing protein 6;3.6.4.-;4.2.99.-;5'-deoxyribose-5-phosphate lyase Ku70;5'-dRP lyase Ku70;70 kDa subunit of Ku antigen;ATP-dependent DNA helicase 2 subunit 1;ATP-dependent DNA helicase II 70 kDa subunit;CTC box-binding factor 75 kDa subunit;CTC75;CTCBF;DNA repair protein XRCC6;Lupus Ku autoantigen protein p70;Ku70;Thyroid-lupus autoantigen;TLAA;X-ray repair complementing defective repair in Chinese hamster cells 6;XRCC6;G22P1; |
| UniProt # | |
| Host | |
| Clonality | |
| Isotype | |
| Reactivity | |
| Applications | |
| Immunogen | A synthetic peptide corresponding to a sequence at C-terminus of human Ku70, different from the related mouse sequence by one amino acid. |
| Molecular weight | |
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| Reconstitution | |
| Cellular localization | |
| Concentration | |
| Form | Lyophilized |
| Storage | |
| Catalog no. (Mfr.) | |
| Main SKU |
Product Overview
This rabbit polyclonal antibody targets DNA repair protein Ku70 (gene XRCC6) in human samples and is validated for flow cytometry, ICC/IF, IHC and Western blot. The predicted molecular weight is 69.8 kDa, and the supplier reports an observed band at about 70 kDa.
Ku70 (XRCC6) is one half of the Ku heterodimer with Ku80, which encircles DNA ends at double-strand breaks and serves as the first responder of non-homologous end joining. Ku recruits DNA-PKcs and downstream repair enzymes, supports V(D)J recombination, and also helps protect telomeres, so it is a common target in DNA repair research.
| Target | DNA repair protein Ku70 (gene XRCC6; UniProt P12956, human) |
|---|---|
| Host / Clonality / Isotype | Rabbit / Polyclonal / Rabbit IgG |
| Reactivity | Human |
| Form | Lyophilized |
| Formulation | Per vial: 4 mg trehalose; 0.9 mg NaCl; 0.2 mg Na2HPO4 |
| Calculated MW | 69.8 kDa |
| Observed MW | 70 kDa |
| Storage | As supplied: −20 °C for up to 12 months from receipt. After reconstitution: 4 °C for up to 1 month, or aliquot and keep at −20 °C for up to 6 months. Avoid repeated freeze–thaw cycles. |
Validated Applications
| Western blot | 0.1–0.5 µg/mL (Human) |
|---|---|
| IHC (paraffin sections) | 2–5 µg/mL (Human) |
| Immunocytochemistry / Immunofluorescence | 5 µg/mL (Human) |
| Flow cytometry (fixed cells) | 1–3 µg/1×106 cells (Human) |
Samples with a confirmed band (WB): human LNCAP cells, human HeLa cells, human 293T cells, human HepG2 cells, human Jurkat cells, human K562 cells, human A549 cells, human A431 cells.
Recommended loading (WB): 20–40 µg of total protein per lane.
Conditions in the example images (WB): 5–20% gradient SDS-PAGE under reducing conditions, 30 µg lysate per lane, transfer to nitrocellulose membrane, blocking in 5% non-fat milk, primary antibody at 0.5 µg/mL overnight at 4 °C, HRP-conjugated secondary antibody at 1:5000, ECL detection.
Samples with confirmed staining (IHC): human bladder cancer tissue, human colon adenocarcinoma tissue, human glioblastoma tissue, human liver cancer tissue, human lung adenocarcinoma tissue, human pancreas ductal adenocarcinoma tissue, human testicular seminoma tissue.
Recommended antigen retrieval: heat-mediated, in TE buffer (pH 9.0); citrate buffer (pH 6.0) can be used instead.
Conditions in the example images (IHC): heat-mediated antigen retrieval in EDTA buffer (pH 8.0).
Samples with confirmed staining (ICC/IF): U2OS cells.
Samples with confirmed staining (ICC/IF): human colon cancer tissue.
Samples with a confirmed signal (flow cytometry): A431 cells.
Immunogen
Synthetic peptide based on the sequence of at C-terminus of human Ku70. It differs from the mouse sequence at one residue.
Reactivity Notes
The supplier lists reactivity with human. UniProt places DNA repair protein Ku70 in the nucleus, chromosome and cytoplasm. The samples tested by the supplier (listed above) are a practical starting point for positive controls.
Safety
Customization & Add-ons: Can’t find the antibody you need—or require a custom format for your assay? We can help you source the best match or support custom antibody solutions for diverse research needs, including species and isotype selection, conjugations and labeling (e.g., HRP/AP, biotin, fluorophores), purification grade options (Protein A/G, affinity purified), formulation preferences (buffer selection, carrier-free, glycerol-free), custom concentrations and aliquoting, low-endotoxin options for cell-based work, and application-focused QC/validation support (project dependent). Click Talk to a Scientist to submit a request, email us at support@biohippo.com, or explore our Research Services for additional support—our team will follow up with feasibility details and next steps.
Shulan Qi et al. (2024) Electrochemical response mechanism of DNA damaged cells: DNA damage repair and purine metabolism activation. Bioelectrochemistry. 10.1016/j.bioelechem.2024.108832
Hu Hua et al. (2010) Expression of TRF1, TRF2, TIN2, TERT, KU70, and BRCA1 proteins is associated with telomere shortening and may contribute to multistage carcinogenesis of gastric cancer. Journal of Cancer Research and Clinical Oncology. 10.1007/s00432-010-0795-x
