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Ku-Holo Monoclonal Mouse Antibody (KU729)

Product Attributes

Antibody number


Antibody reactivity (target)


Antibody type


Host species







IgG1, kappa

Molecular weight

70 kDa & 80 kDa


Ku (p70): 70kDa subunit of Ku antigen; ATP dependent DNA helicase 2 subunit 1; ATP-dependent DNA helicase II 70kDa subunit; CTC box-binding factor 75kDa subunit; CTC75; CTCBF; DNA repair protein XRCC6; G22P1; Ku autoantigen, 70kDa; Ku70; Kup70; Lupus Ku autoantigen protein p70; ML8; Thyroid autoantigen 70kD (Ku antigen); Thyroid-lupus autoantigen (TLAA); X-ray repair cross-complementing protein 6 (XRCC6) Ku (p80): 86kDa subunit of Ku antigen; ATP dependent DNA helicase 2 subunit 2; ATP dependent DNA helicase II 86Kd subunit; ATP-dependent DNA helicase II 80kDa subunit; CTC box-binding factor 85kDa subunit; CTC85; CTCBF; DNA repair protein XRCC5; KARP1; Ku autoantigen 80kDa; Ku80; Ku86 autoantigen related protein 1; KUB2; Lupus Ku autoantigen protein p86; Nuclear factor IV (NFIV); Thyroid-lupus autoantigen (TLAA); X-ray repair cross-complementing protein 5 (XRCC5)

Human gene symbol


Entrez gene ID

2547 (p70); 7520 (p80)


P12956 (p70); P13010 (p80)


292493 (p70); 388739 (p80)


Nuclear extract of human HL-60 cells

Antibody target cellular localization


Verified antibody applications

Flow (intracellular) (verified), IF (verified)

Species reactivity

Human, Non-human primates

Antibody application notes

Higher concentration may be required for direct detection using primary antibody conjugates than for indirect detection with secondary antibody, Immunofluorescence: 0.5-1 ug/mL, Immunocytochemistry acetone-fixed cells 0.25-0.5 ug/mL, Flow Cytometry 0.5-1 ug/million cells/0.1 mL, Does not react with mouse, rat or chicken; others not known, Optimal dilution for a specific application should be determined by user

Positive control

Human cancer K562, HL-60, HEp-2 or HeLa cells

Shipping condition

Room temperature

Storage Conditions

Store at 2 to 8 °C, Protect fluorescent conjugates from light, Note: store BSA-free antibodies at -10 to -35 °C

Shelf life

Guaranteed for at least 24 months from date of receipt when stored as recommended

Regulatory status

For research use only (RUO)

Antibody/conjugate formulation

Conjugates: 0.1 mg/mL in PBS/0.1% BSA/0.05% azide, HRP conjugates: 0.1 mg/mL in PBS/0.05% BSA, Purified: 0.2 mg/mL in PBS/0.05% BSA/0.05% azide, Purified, BSA-free: 1 mg/mL in PBS without azide

Antibody research areas

Apoptosis, Cell cycle, Signal transduction

Don’t see what you’re looking for? Contact us for more conjugation options.
Note: Please be advised that primary antibodies with catalog numbers that begin with “BN” will only be offered conjugated to CF®405S, CF®488A, CF®568, CF®594, CF®640R, CF®647, and biotin as of 5/27/2022. However, previously available primary antibody conjugates that are in stock will remain available until inventory is exhausted. Please view the list of available conjugates on the product page. We also recommend our easy-to-use Mix-n-Stain™ Antibody Labeling Kits for labeling antibodies with all CF® Dyes, fluorescent proteins, tandem dyes, and enzyme reporters. We apologize for the inconvenience.
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Product Description

Recognizes a dimer of two proteins of 70 kDa and ~80 kDa, identified as two subunits of Ku. This MAb recognizes a conformational epitope of p70/p80 dimer, which is destroyed during Western blotting. The p70/p80 dimer is important for function of a 460 kDa DNA-dependent protein kinase. Ku protein plays a role in cell signaling, proliferation, DNA repair, replication, transcriptional activation, and apoptosis.

Primary antibodies are available purified, or with a selection of fluorescent CF® dyes and other labels. CF® dyes offer exceptional brightness and photostability. See the CF® Dye Brochure for more information. Note: Conjugates of blue fluorescent dyes like CF®405S and CF®405M are not recommended for detecting low abundance targets, because blue dyes have lower fluorescence and can give higher non-specific background than other dye colors.

Stock status: Because Biotium offers a large number of antibody and conjugation options, primary antibody conjugates may be made to order. Typical lead times are up to one week for CF® dye and biotin conjugates, and up to 2-3 weeks for fluorescent protein and enzyme conjugates. Please email to inquire about stock status and lead times before placing your order.

 Catalog number key for antibody number 0729, Anti-Ku-Holo (KU729) 

Catalog Number Key for Primary Antibody Conjugates

Antibody # prefixConjugationEx/Em (nm)Laser lineDetection channelDye Features
BNC04CF®405S404/431405DAPI (microscopy), AF405CF®405S Features
BNC88CF®488A490/515488GFP, FITCCF®488A Features
BNC68CF®568562/583532, 561RFP, TRITCCF®568 Features
BNC94CF®594593/614561Texas Red®CF®594 Features
BNC40CF®640R642/662633-640Cy®5CF®640R Features
BNC47CF®647650/665633-640Cy®5CF®647 Features
Alexa Fluor, Pacific Blue, Pacific Orange, and Texas Red are trademarks or registered trademarks of Thermo Fisher Scientific; Cy is a registered trademark of GE Healthcare; IRDye, LI-COR, and Odyssey are registered trademarks of LI-COR Bioscience.

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