CD46 (Membrane Cofactor Protein) Antibody - Without BSA and Azide
Mouse Monoclonal Antibody [Clone 122.2]
|Application ||IF, FC|
|Other Accession||4179, 510402|
|Isotype||Mouse / IgG1, kappa|
|Other Names||Membrane cofactor protein, TLX, Trophoblast leukocyte common antigen, CD46, CD46, MCP, MIC10|
|Format||200ug/ml of Ab purified from Bioreactor Concentrate by Protein A/G. Prepared in 10mM PBS with 0.05% BSA & 0.05% azide. Also available WITHOUT BSA & azide at 1.0mg/ml.|
|Storage||Store at 2 to 8°C.Antibody is stable for 24 months.|
|Precautions||CD46 (Membrane Cofactor Protein) Antibody - Without BSA and Azide is for research use only and not for use in diagnostic or therapeutic procedures.|
|Function||Acts as a cofactor for complement factor I, a serine protease which protects autologous cells against complement- mediated injury by cleaving C3b and C4b deposited on host tissue. May be involved in the fusion of the spermatozoa with the oocyte during fertilization. Also acts as a costimulatory factor for T- cells which induces the differentiation of CD4+ into T-regulatory 1 cells. T-regulatory 1 cells suppress immune responses by secreting interleukin-10, and therefore are thought to prevent autoimmunity.|
|Cellular Location||Cytoplasmic vesicle, secretory vesicle, acrosome inner membrane; Single- pass type I membrane protein Note=Inner acrosomal membrane of spermatozoa. Internalized upon binding of Measles virus, Herpesvirus 6 or Neisseria gonorrhoeae, which results in an increased susceptibility of infected cells to complement-mediated injury. In cancer cells or cells infected by Neisseria, shedding leads to a soluble peptide|
|Tissue Location||Expressed by all cells except erythrocytes.|
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Provided below are standard protocols that you may find useful for product applications.
CD46 acts as a cofactor for complement factor I, a serine protease, which protects autologous cells against complement-mediated injury by cleaving C3b and C4b deposited on host tissue. It may be involved in the fusion of the spermatozoa with the oocyte during fertilization. CD46 acts as a co-stimulatory factor for T-cells, which induces the differentiation of CD4+ into T-regulatory 1 cells. T-regulatory 1 cells suppress immune responses by secreting interleukin-10, and therefore are thought to prevent autoimmunity. A number of viral and bacterial pathogens seem to exploit this property and directly induce an immunosuppressive phenotype in T-cells by binding to CD46.
Iwata, K., et al. 1995. Diversity of sites for measles virus binding and for inactivation of complement C3b and C4b on membrane cofactor protein CD46. J. Biol. Chem. 270: 15148-15152. | Liszewski, M.K., et al. 1996. Control of the complement system. Adv. Immunol. 61: 201-283. | Liszewski, M.K., et al. 1996. Membrane cofactor protein (MCP, CD46). Isoforms differ in protection against the classical pathway of complement. J. Immunol. 156: 4415-442
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