Exalpha Biologicals, Inc.

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Exalpha Biologicals, Inc. is now a US distributor for Nordic-Mubio products

Nordic-MUbio develops and manufactures high quality antibody reagents for use in R&D. All our products are manufactured according to strict ISO 9001 quality guidelines, and our focus is on developing antibodies targetting Cell Adhesion, Nuclear and Cytoskeletal Proteins.

Nordic-MUbio is one of the leading antibody companies developing antibodies for zebrafish research – we currently have over 50 antibodies validated for immunofluorescence in zebrafish.

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Latest References

Akazawa, Y., et al. "Endoplasmic Reticulum Stress Contributes to Helicobacter Pylori VacA-Induced Apoptosis" PLoS ONE 8(12): e82322

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Homa, N.J., et al. "Epstein-Barr Virus Induces Global Changes in Cellular mRNA Isoform Usage That Are Important for the Maintenance of Latency" J. Virol., 2013, 87, 12291-12301

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Exalpha Biologicals, Inc.

Ku (p70)

  • Product Code: X1390M
  • Size: 100 µg
  • Availability: In Stock In Stock
  • Price (USD): $433

Cat #

X1390M		 Quantity:      

Data Sheet

Product Name

Ku (p70)







Product Type

Monoclonal Antibody


Human, Monkey, Xenopus


ELISA, Immunofluorescence, Western Blot, Immunohistochemistry (Frozen & Paraffin Sections)


Protein A/G Chromatography


100 µg

Price (USD)



Recognizes a protein of 70kDa, identified as p70 subunit of Ku. The epitope of this antibody maps between amino acids 506-541 of p70. The Ku autoantigen is a heterodimer of 70kDa (p70) and ~80kDa (p80) proteins. The p70/p80 dimer is important for function of a 460kDa DNA-dependent protein kinase (DNA-PK) that phosphorylates certain transcription factors, including Sp1, Oct-1, p53, and SV40 large T antigen in vitro.


Hybridoma produced by the fusion of splenocytes from BALB/c mice immunized with human placental extract designated as PSE1-PL and mouse myeloma NS1 & Sp2/0 cells.

Positive Control

BT474, HeLa, human K562, HL-60, HEp-2, HeLa, Cos-1 cells


Provided as solution in phosphate buffered saline with 0.08% sodium azide

Customer Storage

Product should be stored at -20°C. Aliquot to avoid freeze/thaw cycles

Product Image

Image Legend

Immunohistochemical staining using Ku (p70) antibody on formalin fixed, paraffin embedded human tonsil.


1. Ajmani AK, et. al. Absence of autoantigen Ku in mature human neutrophils and HL-60 cells and lymphocytes undergoing apoptosis. J. Exp. Med., 1995, 181(6):2049-2058.

2. Wang J, et. al. Murine monoclonal antibodies specific for conserved and non-conserved antigenic determinants of the human and murine Ku autoantigens. Molecular Biology Reports, 1993, 18(1):15-28.

3. Knuth, M.W., et al. Purification and characterization of proximal sequence element-binding protein 1, a transcription activating protein related to Ku and TREF that binds the proximal sequence element of the human U1 promoter. J. Biol. Chem., 1990 Oct 15, 265(29):17911-20.