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Mouse Monoclonal to CD222 / IGF2 receptor / CIMPR

MEM-240 (IgG1)

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CD222 (CIMPR, cation-independent mannose 6-phosphate receptor; IGF2 receptor) is a ubiquitously expressed 250 kDa transmembrane protein. No more than 10% of CD222 is present on the cell surface where it serves as a multifunctional receptor. Intracellular (major) fraction of CD222 is involved in transport of newly synthesized lysosomal enzymes modified by mannose 6-phosphate from Golgi apparatus to lysosomes. The cell surface CD222 binds and internalizes exogeneous mannose 6-phosphate-containing ligands. Importantly, CD222 is crutial for internalization and degradation of insulin-like growth factor 2, thus controling cell growth. CD222 also complexes CD87 (urokinase-type plasminogen-activator receptor), plasminogen and latent TGF-beta, last but not least CD222 serves as a receptor for heparanase and even for Listeria.


The antibody MEM-238 recognizes an epitope between amino acids 698-1262 of CD222 (IGF2 receptor), a ubiquitously expressed 250 kDa multifunctional type I transmembrane protein. The majority of CD222 is found in the late endosomal/prelysosomal compartment, 5-10% in the plasma membrane and the truncated (220 kDa) form of CD222 is present in human and bovine serum.
HLDA VII; WS Code 70641

Regulatory Status


Recombinant Vaccinia virus encoding CD222.

Species Reactivity:

  • Human

Negative Species:


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

Product Specific References

  • *Schiller HB, Szekeres A, Binder BR, Stockinger H, Leksa V: Mannose 6-phosphate/insulin-like growth factor 2 receptor limits cell invasion by controlling alphaVbeta3 integrin expression and proteolytic processing of urokinase-type plasminogen activator receptor. Mol Biol Cell. 2009 Feb;20(3):745-56. [Abstract]
  • *Leksa V, Godar S, Cebecauer M, Hilgert I, Breuss J, Weidle UH, Horejsi V, Binder BR, Stockinger H: The N terminus of mannose 6-phosphate / insulin-like growth factor 2 receptor in regulation of fibrinolysis and cell migration. J Biol Chem. 2002 Oct 25;277(43):40575-82. [Abstract] [Full Text]
  • *Leksa V, Loewe R, Binder B, Schiller HB, Eckerstorfer P, Forster F, Soler-Cardona A, Ondrovicová G, Kutejová E, Steinhuber E, Breuss J, Drach J, Petzelbauer P, Binder BR, Stockinger H: Soluble M6P/IGF2R released by TACE controls angiogenesis via blocking plasminogen activation. Circ Res. 2011 Mar 18;108(6):676-85. [Abstract] [Full Text]
  • For research use only. Not for drug, diagnostic or other use.

    Example Data

    MEM-240 purified

    Fig. 1. Flow cytometry detection of CD222 in human peripheral blood with anti-CD222 (MEM-240) purified, GAM-APC.

    MEM-240 PE

    Fig. 2. Flow cytometry detection of CD222 in human peripheral blood with anti-CD222 (MEM-240) PE.

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