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Mouse Monoclonal to CD109

W7C5 (IgG1)

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CD109, also known as the Gov platelet alloantigen, is a GPI-anchored glycoprotein which localizes to the surface of platelets, activated T-cells, and endothelial cells, as well as of various hematopoietic cells and T cell lines. The protein binds to and negatively regulates signaling by transforming growth factor beta (TGF-beta). Multiple transcript variants encoding different isoforms have been found for this gene. The Gov antigen system is involved in platelet transfusion reaction, posttransfusion purpura and in neonatal alloimmune thrombocytopenia.


The mouse monoclonal antibody W7C5 recognizes CD109, an approximately 165 kDa GPI-anchored protein expressed mainly on various hematopoietic cells, activated T lymphoblasts, activated platelets, and endothelial cells.

Regulatory Status


WERI-RB-1 retinoblastoma cell line

Species Reactivity:

  • Human

Negative Species:


  • Flow Cytometry
Usage note:
Indicated dilutions are recommended starting points for use of this product. Working concentrations should be determined by the investigator.

Product Specific References

  • *Giesert C, Marxer A, Sutherland DR, Schuh AC, Kanz L, Buhring HJ: Antibody W7C5 defines a CD109 epitope expressed on CD34+ and CD34- hematopoietic and mesenchymal stem cell subsets. Ann N Y Acad Sci. 2003 May;996:227-30. [Abstract]
  • *Crisan M, Yap S, Casteilla L, Chen CW, Corselli M, Park TS, Andriolo G, Sun B, Zheng B, Zhang L, Norotte C, Teng PN, Traas J, Schugar R, Deasy BM, Badylak S, Buhring HJ, Giacobino JP, Lazzari L, Huard J, Péault B: A perivascular origin for mesenchymal stem cells in multiple human organs. Cell Stem Cell. 2008 Sep 11;3(3):301-13. doi: 10.1016/j.stem.2008.07.003. [Abstract]
  • For research use only. Not for drug, diagnostic or other use.

    Example Data

    W7C5 pur

    Fig. 1. Surface staining of human peripheral blood cells using anti-CD109 (W7C5) purified, GAM-APC.

    W7C5 PE

    Fig. 2. Surface staining of human peripheral blood cells using anti-CD109 (W7C5) PE.

    Unless indicated otherwise, all products are For Research Use Only and not for diagnostic or therapeutic use. Not for resale or transfer either as a stand-alone product or as a component of another product without written consent of EXBIO. EXBIO will not be held responsible for patent infringement or other violations that may occur with the use of our products. All orders are accepted subject to EXBIO´s term and conditions which are available at
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