CD59 antibody | MEM-43

Mouse anti Human CD59:RPE

Product Type
Monoclonal Antibody

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Mouse anti Human CD59 antibody, clone MEM-43 recognizes CD59, a glycosyl-phosphatidylinositol (GPI) anchored membrane protein also known as membrane attack complex inhibition factor. CD59 blocks the formation of the complement membrane attack complex (MAC) by binding of C8a and C9. CD59 is found on all types of leucocytes including platelets and is also expressed on many non-haematopoietic cells.
The epitope recognized by Mouse anti Human CD59 antibody, clone MEM-43 is lost after reduction therefore, non-reducing conditions are required for western blotting techniques.

Target Species
Product Form
Purified IgG conjugated to R. Phycoerythrin (RPE) - lyophilized
Reconstitute with 1.0 ml distilled water
Purified IgG prepared by affinity chromatography on Protein A
Buffer Solution
Phosphate buffered saline
Preservative Stabilisers
0.09%Sodium Azide
1%Bovine Serum Albumin
Thymocytes and T lymphocytes.
Max Ex/Em
Fluorophore Excitation Max (nm) Emission Max (nm)
RPE 488nm laser 496 578
For research purposes only
12 months from date of despatch

Prior to reconstitution store at +4oC. Following reconstitution store at +4oC.


This product should be stored undiluted. This product is photosensitive and should be protected from light. Should this product contain a precipitate we recommend microcentrifugation before use.

This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit the antibody protocols page.
Application Name Verified Min Dilution Max Dilution
Flow Cytometry Neat
Where this antibody has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the antibody for use in their own system using appropriate negative/positive controls.
Flow Cytometry
Use 10ul of the suggested working dilution to label 106 cells in 100ul.

How to Use the Spectraviewer

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Description Product Code Applications Pack Size List Price Your Price Quantity
Mouse IgG2a Negative Control:RPE MCA929PE F 100 Tests loader
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Description Mouse IgG2a Negative Control:RPE

Description Product Code Applications Pack Size List Price Your Price Quantity
Human Seroblock BUF070A F 50 Test
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Description Human Seroblock
Human Seroblock BUF070B F 200 Test
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Description Human Seroblock

References for CD59 antibody

  1. Donin, N. et al. (2003) Complement resistance of human carcinoma cells depends on membrane regulatory proteins, protein kinases and sialic acid.
    Clin Exp Immunol. 131: 254-63.
  2. Ohyama, M. et al. (2006) Characterization and isolation of stem cell-enriched human hair follicle bulge cells.
    J Clin Invest. 116: 249-60.
  3. Stefanova, I. et al. (1989) in Leucocyte Typing IV: White cell differentiation antigens.
    Ed. Knapp, W. et al. Oxford University Press pp 678-97.
  4. Stefanová, I. et al. (1989) Characterization of a broadly expressed human leucocyte surface antigen MEM-43 anchored in membrane through phosphatidylinositol.
    Mol Immunol. 26 (2): 153-61.
  5. Tandon, N. et al. (1994) Expression and function of multiple regulators of complement activation in autoimmune thyroid disease.
    Immunology. 81 (4): 643-7.
  6. Horejsí, V. et al. (1988) Monoclonal antibodies against human leucocyte antigens. II. Antibodies against CD45 (T200), CD3 (T3), CD43, CD10 (CALLA), transferrin receptor (T9), a novel broadly expressed 18-kDa antigen (MEM-43) and a novel antigen of restricted expression (MEM-74).
    Folia Biol (Praha). 34 (1): 23-34.
  7. Stefanová, I. & Horejsí, V. (1991) Association of the CD59 and CD55 cell surface glycoproteins with other membrane molecules.
    J Immunol. 147 (5): 1587-92.
  8. Shaw, M.L. et al. (2008) Cellular proteins in influenza virus particles.
    PLoS Pathog. 4: e1000085.
  9. View The Latest Product References
  10. Sadallah, S. et al. (2011) Microparticles (ectosomes) shed by stored human platelets downregulate macrophages and modify the development of dendritic cells.
    J Immunol. 186: 6543-52.
  11. Jolly, C, and Sattentau. Q.J. (2005) Human Immunodeficiency Virus Type 1 Virological Synapse Formation in T Cells Requires Lipid Raft Integrity
    J Virol. 79: 12088-94.
  12. Shamri, R. et al. (2002) Chemokine stimulation of lymphocyte alpha 4 integrin avidity but not of leukocyte function-associated antigen-1 avidity to endothelial ligands under shear flow requires cholesterol membrane rafts.
    J Biol Chem. 277: 40027-35.
  13. Bonnon, C. et al. (2010) Selective export of human GPI-anchored proteins from the endoplasmic reticulum.
    J Cell Sci. 123: 1705-15.
  14. Zhang, J. et al. (2002) Early complement activation and decreased levels of glycosylphosphatidylinositol-anchored complement inhibitors in human and experimental diabetic retinopathy.
    Diabetes. 51: 3499-504.
  15. Ellison, B.S. et al. (2007) Complement susceptibility in glutamine deprived breast cancer cells.
    Cell Div. 2007 2: 20.
  16. Cowan, P.J. et al. (1998) High-level endothelial expression of human CD59 prolongs heart function in an ex vivo model of xenograft rejection.
    Transplantation. 65: 826-31.
  17. Vanderplasschen, A. et al. (1997) Extracellular enveloped vaccinia virus is resistant to complement because of incorporation of host complement control proteins into its envelope.
    Proc Natl Acad Sci U S A. 95: 7544-9.
  18. Takemoto, M. et al. (2007) Human herpesvirus 7 infection increases the expression levels of CD46 and CD59 in target cells.
    J Gen Virol. 88: 1415-22.
  19. Chong, Y.H. and Lee, M.J. (2000) Expression of complement inhibitor protein CD59 in human neuronal and glial cell lines treated with HIV-1 gp41 peptides.
    J Neurovirol. 6: 51-60.
  20. Gendek-Kubiak, H. and Gendek, E.G. (2004) Immunolocalization of protectin (CD59) and macrophages in polymyositis and dermatomyositis.
    J Neuroimmunol. 149: 187-94.
  21. Abe, Y. et al. (2017) Glycan region of GPI anchored-protein is required for cytocidal oligomerization of an anticancer parasporin-2, Cry46Aa1 protein, from Bacillus thuringiensis strain A1547.
    J Invertebr Pathol. 142: 71-81.
  22. Sica, M. et al. (2017) Eculizumab treatment: stochastic occurrence of C3 binding to individual PNH erythrocytes.
    J Hematol Oncol. 10 (1): 126.
  23. Ueda, M. et al. (2019) Endovascular trophoblast expresses CD59 to evade complement-dependent cytotoxicity.
    Mol Cell Endocrinol. 490: 57-67.
  24. Rondelli, T. et al. (2013) The frequency of granulocytes with spontaneous somatic mutations: a wide distribution in a normal human population.
    PLoS One. 8 (1): e54046.
  25. Gullipalli, D. et al. (2018) Antibody Inhibition of Properdin Prevents Complement-Mediated Intravascular and Extravascular Hemolysis.
    J Immunol. 201 (3): 1021-1029.

Flow Cytometry

Immuno-electron Microscopy


Immunohistology - Frozen

Western Blotting

Entrez Gene
GO Terms
GO:0005515 protein binding
GO:0007596 blood coagulation
GO:0005576 extracellular region
GO:0005624 membrane fraction
GO:0007166 cell surface receptor linked signaling pathway
GO:0031362 anchored to external side of plasma membrane
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