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Mouse Monoclonal to CD72

3F3 (IgG2b)

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CD72 is a transmembrane glycoprotein expressed as a homodimer especially in B cells, but also in other antigen presenting cells such as dendritic cells and macrophages. Through one of its immunoreceptor tyrosine-based inhibitory motives (ITIMs), CD72 interacts with tyrosine phosphatase SHP-1, thereby suppressing B cell responsiveness. Binding of CD72 with its ligand CD100 (Sema4D) prevents BCR association and phosphorylation of CD72 and results in dissociation of SHP-1 from CD72, thus enables B cell activation.


The antibody 3F3 reacts with CD72, a 39-43 kDa type II membrane glycoprotein (C-type lectin family). CD72 is a pan-B cell marker expressed throughout the B lymphocytes diferentiation with the exception of plasma cells; it is also present on follicular dendritic cells.
HLDA V; WS Code B CD72.5
HLDA VI; WS Code B CD72.1
HLDA VI; WS Code 6 BP 84

Regulatory Status


Normal human lymphocytes from a lymph node.

Species Reactivity:

  • Human

Negative Species:


  • Flow Cytometry
    Recommended dilution:1 μg/ml
  • Immunoprecipitation
Usage note:
Indicated dilutions are recommended starting points for use of this product. Working concentrations should be determined by the investigator.

General references

  • *Kumanogoh A, Watanabe C, Lee I, Wang X, Shi W, Araki H, Hirata H, Iwahori K, Uchida J, Yasui T, Matsumoto M, Yoshida K, Yakura H, Pan C, Parnes JR, Kikutani H: Identification of CD72 as a lymphocyte receptor for the class IV semaphorin CD100: a novel mechanism for regulating B cell signaling. Immunity. 2000 Nov;13(5):621-31. [Abstract]
  • *Kumanogoh A, Kikutani H: The CD100-CD72 interaction: a novel mechanism of immune regulation. Trends Immunol. 2001 Dec;22(12):670-6. [Abstract]
  • *Kumanogoh A, Shikina T, Watanabe C, Takegahara N, Suzuki K, Yamamoto M, Takamatsu H, Prasad DV, Mizui M, Toyofuku T, Tamura M, Watanabe D, Parnes JR, Kikutani H. Requirement for CD100-CD72 interactions in fine-tuning of B-cell antigen receptor signaling and homeostatic maintenance of the B-cell compartment. Int Immunol. 2005 Oct;17(10):1277-82. [Abstract] [Full Text]
  • *Mizrahi S, Markel G, Porgador A, Bushkin Y, Mandelboim O: CD100 on NK cells enhance IFNgamma secretion and killing of target cells expressing CD72. PLoS ONE. 2007 Sep 5;2(9):e818. [Abstract] [Full Text]
  • Product Specific References

  • *Leukocyte Typing V., Schlossman S. et al. (Eds.), Oxford University Press (1995).
  • *Leukocyte Typing VI., Kishimoto T. et al. (Eds.), Garland Publishing Inc. (1997).
  • *Mizrahi S, Markel G, Porgador A, Bushkin Y, Mandelboim O: CD100 on NK cells enhance IFNgamma secretion and killing of target cells expressing CD72. PLoS One. 2007 Sep 5;2(9):e818. [Abstract] [Full Text]
  • *Dauby N, Kummert C, Lecomte S, Liesnard C, Delforge ML, Donner C, Marchant A: Primary Human Cytomegalovirus Infection Induces the Expansion of Virus-Specific Activated and Atypical Memory B Cells. J Infect Dis. 2014 May 1. pii: jiu255. [Epub ahead of print] [Abstract]
  • *Kanderova V, Kuzilkova D, Stuchly J, Vaskova M, Brdicka T, Fiser K, Hrusak O, Lund-Johansen F, Kalina T: High-resolution Antibody Array Analysis of Childhood Acute Leukemia Cells. Mol Cell Proteomics. 2016 Apr;15(4):1246-61. [Abstract]
  • For research use only. Not for drug, diagnostic or other use.

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  • Example Data

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