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Mouse Monoclonal to CD71 / Transferrin Receptor

MEM-189 (IgG1)

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  11-353-C025 purified 0.025 mg yes choose region PDF datasheetHTML datasheet buy
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CD71 (transferrin receptor) is a type II transmembrane glycoprotein expressed as homodimer in erythroid blood cell line and in activated leukocytes. Upon binding of holotransferrin (complex of transferrin and iron ions), CD71 is internalized by clathrin-mediated endocytosis. Acidification of endosomes by vesicular membrane proton pumps leads to dissociation of iron ions, whereas transferrin (apotransferrin) remains associated with CD71 and recycles to the cell surface, where it is released upon exposure to normal pH. CD71 is also involved in uptake of non-transferrin bound iron.


The antibody MEM-189 reacts with CD71 antigen (transferrin receptor), a 95 kDa type II homodimeric transmembrane glycoprotein expressed on activated B and lymphocytes, macrophages and erythroid precursors; it is lost on resting blood leukocytes.
The antibody MEM-189 does not block binding of transferrin to the receptor.
HLDA VI; WS Code NL N-L025

Regulatory Status


KG1 human acute myelogenous leukaemia cell line

Species Reactivity:

  • Human

Negative Species:


  • Western Blotting
    Application note: Non-reducing conditions.
  • Flow Cytometry
    Recommended dilution:2 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

  • *Rouault TA: How mammals acquire and distribute iron needed for oxygen-based metabolism. PLoS Biol. 2003 Dec;1(3):E79. [Abstract] [Full Text]
  • *Taketani S: Aquisition, mobilization and utilization of cellular iron and heme: endless findings and growing evidence of tight regulation. Tohoku J Exp Med. 2005 Apr;205(4):297-318. [Abstract] [Full Text]
  • *Graham RM, Chua AC, Herbison CE, Olynyk JK, Trinder D: Liver iron transport. World J Gastroenterol. 2007 Sep 21;13(35):4725-36. [Abstract]
  • *Graham RM, Reutens GM, Herbison CE, Delima RD, Chua AC, Olynyk JK, Trinder D: Transferrin receptor 2 mediates uptake of transferrin-bound and non-transferrin-bound iron. J Hepatol. 2008 Feb;48(2):327-34. [Abstract]
  • Product Specific References

  • *Leukocyte Typing VI., Kishimoto T. et al. (Eds.), Garland Publishing Inc. (1997).
  • *Schatzlmaier P, Supper V, G÷schl L, Zwirzitz A, Eckerstorfer P, Ellmeier W, Huppa JB, Stockinger H: Rapid multiplex analysis of lipid raft components with single-cell resolution. Sci Signal. 2015 Sep 22;8(395):rs11 [Abstract]
  • For research use only. Not for drug, diagnostic or other use.

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  • Example Data

    MEM-189 pur

    Fig. 1. Surface staining of CD71 in K562 cells with anti-CD71 (MEM-189) purified, GAM-APC.

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