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Rabbit Recombinant Monoclonal Ku70 antibody. Carrier free. Suitable for IHC-P, IP, WB, ICC/IF, Flow Cyt (Intra) and reacts with Human samples.

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Images

Immunoprecipitation - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (AB239912), expandable thumbnail
  • Flow Cytometry (Intracellular) - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (AB239912), expandable thumbnail
  • Immunocytochemistry/ Immunofluorescence - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (AB239912), expandable thumbnail
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (AB239912), expandable thumbnail
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (AB239912), expandable thumbnail

Key facts

Isotype
IgG
Host species
Rabbit
Storage buffer

pH: 7.2 - 7.4
Constituents: PBS

Form
Liquid
Clonality
Monoclonal

Immunogen

  • The exact immunogen used to generate this antibody is proprietary information.

Reactivity data

Select an application
Product promiseTestedExpectedPredictedNot recommended
IHC-PIPWBICC/IFFlow Cyt (Intra)
Human
Tested
Tested
Expected
Tested
Tested

Tested
Tested

Species
Human
Dilution info
-
Notes

Antigen retrieval and the use of an HRP/AP polymerized secondary antibody is recommended for enhanced staining.

Perform heat-mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.

Tested
Tested

Species
Human
Dilution info
-
Notes

-

Expected
Expected

Species
Human
Dilution info
Use at an assay dependent concentration.
Notes

-

Tested
Tested

Species
Human
Dilution info
-
Notes

-

Tested
Tested

Species
Human
Dilution info
-
Notes

ab199376 - Rabbit monoclonal IgG, is suitable for use as an isotype control with this antibody.

Associated Products

Select an associated product type

6 products for Alternative Product

8 products for Alternative Version

Target data

Function

Single-stranded DNA-dependent ATP-dependent helicase that plays a key role in DNA non-homologous end joining (NHEJ) by recruiting DNA-PK to DNA (PubMed:11493912, PubMed:12145306, PubMed:20493174, PubMed:2466842, PubMed:7957065, PubMed:8621488, PubMed:9742108). Required for double-strand break repair and V(D)J recombination (PubMed:11493912, PubMed:12145306, PubMed:20493174, PubMed:2466842, PubMed:7957065, PubMed:8621488, PubMed:9742108). Also has a role in chromosome translocation (PubMed:11493912, PubMed:12145306, PubMed:20493174, PubMed:2466842, PubMed:7957065, PubMed:8621488, PubMed:9742108). Has a role in chromosome translocation (PubMed:11493912, PubMed:12145306, PubMed:20493174, PubMed:2466842, PubMed:7957065, PubMed:8621488, PubMed:9742108). The DNA helicase II complex binds preferentially to fork-like ends of double-stranded DNA in a cell cycle-dependent manner (PubMed:11493912, PubMed:12145306, PubMed:20493174, PubMed:2466842, PubMed:7957065, PubMed:8621488, PubMed:9742108). It works in the 3'-5' direction (PubMed:11493912, PubMed:12145306, PubMed:20493174, PubMed:2466842, PubMed:7957065, PubMed:8621488, PubMed:9742108). During NHEJ, the XRCC5-XRRC6 dimer performs the recognition step: it recognizes and binds to the broken ends of the DNA and protects them from further resection (PubMed:11493912, PubMed:12145306, PubMed:20493174, PubMed:2466842, PubMed:7957065, PubMed:8621488, PubMed:9742108). Binding to DNA may be mediated by XRCC6 (PubMed:11493912, PubMed:12145306, PubMed:20493174, PubMed:2466842, PubMed:7957065, PubMed:8621488, PubMed:9742108). The XRCC5-XRRC6 dimer acts as a regulatory subunit of the DNA-dependent protein kinase complex DNA-PK by increasing the affinity of the catalytic subunit PRKDC to DNA by 100-fold (PubMed:11493912, PubMed:12145306, PubMed:20493174, PubMed:2466842, PubMed:7957065, PubMed:8621488, PubMed:9742108). The XRCC5-XRRC6 dimer is probably involved in stabilizing broken DNA ends and bringing them together (PubMed:11493912, PubMed:12145306, PubMed:20493174, PubMed:2466842, PubMed:7957065, PubMed:8621488, PubMed:9742108). The assembly of the DNA-PK complex to DNA ends is required for the NHEJ ligation step (PubMed:11493912, PubMed:12145306, PubMed:20493174, PubMed:2466842, PubMed:7957065, PubMed:8621488, PubMed:9742108). Probably also acts as a 5'-deoxyribose-5-phosphate lyase (5'-dRP lyase), by catalyzing the beta-elimination of the 5' deoxyribose-5-phosphate at an abasic site near double-strand breaks (PubMed:20383123). 5'-dRP lyase activity allows to 'clean' the termini of abasic sites, a class of nucleotide damage commonly associated with strand breaks, before such broken ends can be joined (PubMed:20383123). The XRCC5-XRRC6 dimer together with APEX1 acts as a negative regulator of transcription (PubMed:8621488). In association with NAA15, the XRCC5-XRRC6 dimer binds to the osteocalcin promoter and activates osteocalcin expression (PubMed:12145306). 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).

Alternative names

Recommended products

Rabbit Recombinant Monoclonal Ku70 antibody. Carrier free. Suitable for IHC-P, IP, WB, ICC/IF, Flow Cyt (Intra) and reacts with Human samples.

Key facts

Isotype
IgG
Form
Liquid
Clonality
Monoclonal
Immunogen
  • The exact immunogen used to generate this antibody is proprietary information.
Carrier free
Yes
Clone number
EPR4027
Purification technique
Affinity purification Protein A
Concentration
Loading...

Storage

Shipped at conditions
Blue Ice
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
+4°C
Storage information
Do Not Freeze

Notes

ab239912 is the carrier-free version of Anti-Ku70 antibody [EPR4027] ab92450.

Mouse, Rat: We have preliminary internal testing data to indicate this antibody may not react with these species. Please contact us for more information.

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 product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Our carrier-free antibodies are typically supplied in a PBS-only formulation, purified and free of BSA, sodium azide and glycerol. The carrier-free buffer and high concentration allow for increased conjugation efficiency.

This conjugation-ready format is designed for use with fluorochromes, metal isotopes, oligonucleotides, and enzymes, which makes them ideal for antibody labelling, functional and cell-based assays, flow-based assays (e.g. mass cytometry) and Multiplex Imaging applications.

Use our conjugation kits for antibody conjugates that are ready-to-use in as little as 20 minutes with 1 minute hands-on-time and 100% antibody recovery: available for fluorescent dyes, HRP, biotin and gold.

This product is compatible with the Maxpar® Antibody Labeling Kit from Fluidigm, without the need for antibody preparation. Maxpar® is a trademark of Fluidigm Canada Inc.

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.
Activity summary

Ku70 also known as XRCC6 or K331 is a DNA repair protein with a molecular mass of approximately 70 kDa. It belongs to the Ku protein family which includes Ku80. This protein expresses mainly in the nucleus of cells across various tissue types. As a part of a heterodimer together with Ku80 Ku70 forms the Ku70/Ku80 complex which binds to free DNA ends allowing DNA repair processes to occur efficiently.

Biological function summary

The Ku70 protein plays a significant role in maintaining genomic stability. It is an important component of the non-homologous end joining (NHEJ) pathway a primary mechanism for repairing double-strand breaks in DNA. By forming the Ku70/Ku80 complex it accurately aligns DNA ends to facilitate repair and prevent chromosomal abnormalities. The Ku70 protein also involves in telomere maintenance and can influence cell cycle regulation.

Pathways

Ku70 contributes mainly to the NHEJ DNA repair pathway. This pathway is important for cellular response to DNA damage and involves other proteins such as DNA-PKcs (DNA-dependent protein kinase catalytic subunit) and XRCC4. Ku70's interaction with DNA-PKcs enables the activation of its kinase activity which is essential for the repair process. Additionally Ku70 is involved in the homologous recombination pathway where it interacts with proteins like Rad51 to ensure repair fidelity.

Associated diseases and disorders

Research links the Ku70 protein to cancer and neurodegenerative diseases. Dysregulation or mutations affecting Ku70 can lead to genomic instability contributing to cancer development. Ku70 also shows connections to neurodegenerative conditions like Alzheimer's disease where its role in DNA repair and apoptosis regulation may impact neuronal cell survival. Interactions with p53 a protein important for DNA damage response further underline Ku70's influence in these disease contexts.

Product promise

We are dedicated to supporting your work with high quality reagents and we are here for you every step of the way should you need us.

In the unlikely event of one of our products not working as expected, you are covered by our product promise.

Full details and terms and conditions can be found here:
Terms & Conditions.

7 product images

  • Immunoprecipitation - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (ab239912), expandable thumbnail

    Immunoprecipitation - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (ab239912)

    Anti-Ku70 antibody [EPR4027] ab92450 (purified ) at 1/20 dilution (0.5ug) immunoprecipitating Ku70 in HeLa whole cell lysate.

    Lane 1 (input): HeLa (Human cervix adenocarcinoma epithelial cell) whole cell lysate 10μg.
    Lane 2 (+): Anti-Ku70 antibody [EPR4027] ab92450 & HeLa whole cell lysate.
    Lane 3 (-): Rabbit monoclonal IgG (Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab172730) instead of Anti-Ku70 antibody [EPR4027] ab92450 in HeLa whole cell lysate.

    For western blotting, VeriBlot for IP Detection Reagent (HRP) (VeriBlot for IP Detection Reagent (HRP) ab131366) was used at 1/1000 dilution.

    Blocking and diluting buffer: 5% NFDM/TBST.

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (Anti-Ku70 antibody [EPR4027] ab92450).

    All lanes: Immunoprecipitation - Anti-Ku70 antibody [EPR4027] (Anti-Ku70 antibody [EPR4027] ab92450)

    Predicted band size: 70 kDa

  • Flow Cytometry (Intracellular) - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (ab239912), expandable thumbnail

    Flow Cytometry (Intracellular) - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (ab239912)

    Intracellular Flow Cytometry analysis of HeLa (Human cervix adenocarcinoma epithelial cell) cells labeling Ku70 with purified Anti-Ku70 antibody [EPR4027] ab92450 at 1/20 dilution (5μg/ml) (Red). Cells were fixed with 4% Paraformaldehyde and permeabilised with 90% Methanol. A Goat anti rabbit IgG (Alexa Fluor® 488, Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) ab150077) secondary antibody was used at 1/2000. Isotype control - Rabbit monoclonal IgG (Black). Unlabeled control - Cell without incubation with primary antibody and secondary antibody (Blue).

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (Anti-Ku70 antibody [EPR4027] ab92450).

  • Immunocytochemistry/ Immunofluorescence - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (ab239912), expandable thumbnail

    Immunocytochemistry/ Immunofluorescence - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (ab239912)

    Immunocytochemistry/ Immunofluorescence analysis of HeLa (Human cervix adenocarcinoma epithelial cell) cells labeling Ku70 with purified Anti-Ku70 antibody [EPR4027] ab92450 at 1/250 dilution (0.46 μg/ml). Cells were fixed in 100% Methanol and permeabilized with None. Cells were counterstained with Alexa Fluor® 594 Anti-alpha Tubulin antibody [DM1A] - Microtubule Marker ab195889 Anti-alpha Tubulin antibody [DM1A] - Microtubule Marker (Alexa Fluor® 594) 1/200 (2.5 μg/ml). Goat anti rabbit IgG (Alexa Fluor® 488, Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) ab150077) was used as the secondary antibody at 1/1000 (2 μg/ml) dilution. DAPI (blue) was used as nuclear counterstain. PBS instead of the primary antibody was used as the secondary antibody only control.

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (Anti-Ku70 antibody [EPR4027] ab92450).

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (ab239912), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (ab239912)

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human colon carcinoma tissue sections labeling Ku70 with purified Anti-Ku70 antibody [EPR4027] ab92450 at 1/250 dilution (0.46 μg/ml). Heat mediated antigen retrieval using Bond™ Epitope Retrieval Solution 1 (pH 6.0). Rabbit specific IHC polymer detection kit HRP/DAB (Rabbit specific IHC polymer detection kit HRP/DAB ab209101) was used as the secondary antibody. Negative control: PBS instead of the primary antibody. Hematoxylin was used as a counterstain.

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (Anti-Ku70 antibody [EPR4027] ab92450).

  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (ab239912), expandable thumbnail

    Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (ab239912)

    Paraffin embedded Human testis tissue (A) or Human tonsil tissue (B) were labelled with Anti-Ku70 antibody [EPR4027] ab92450 at 1/100 dilution.

    Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (Anti-Ku70 antibody [EPR4027] ab92450).

  • Immunocytochemistry/ Immunofluorescence - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (ab239912), expandable thumbnail

    Immunocytochemistry/ Immunofluorescence - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (ab239912)

    Immunofluorescence staining of HeLa cells using Anti-Ku70 antibody [EPR4027] ab92450 at 1/100 dilution.This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (Anti-Ku70 antibody [EPR4027] ab92450).

  • Flow Cytometry (Intracellular) - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (ab239912), expandable thumbnail

    Flow Cytometry (Intracellular) - Anti-Ku70 antibody [EPR4027] - BSA and Azide free (ab239912)

    Overlay histogram showing HeLa cells stained with Anti-Ku70 antibody [EPR4027] ab92450 (red line). The cells were fixed with 4% paraformaldehyde (10 min) and then permeabilized with 0.1% PBS-Tween for 20 min. The cells were then incubated in 1x PBS / 10% normal goat serum / 0.3M glycine to block non-specific protein-protein interactions followed by the antibody (Anti-Ku70 antibody [EPR4027] ab92450, 1/100 dilution) for 30 min at 22°C. The secondary antibody used was DyLight® 488 goat anti-rabbit IgG (H+L) (Goat Anti-Rabbit IgG H&L (DyLight® 488) preadsorbed ab96899) at 1/500 dilution for 30 min at 22°C. Isotype control antibody (black line) was rabbit IgG (monoclonal) (1μg/1x106 cells) used under the same conditions. Acquisition of >5,000 events was performed. This antibody gave a positive signal in HeLa cells fixed with 80% methanol (5 min)/permeabilized with 0.1% PBS-Tween for 20 min used under the same conditions.

    This data was developed using the same antibody clone in a different buffer formulation containing PBS, BSA, glycerol, and sodium azide (Anti-Ku70 antibody [EPR4027] ab92450).

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