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This antibody recognizes an extracellular epitope on SCR4 (the membrane-proximal SCR) domain of CD46 (Membrane cofactor protein). CD46 is 56-66 kDa dimeric transmembrane protein expressed on T and B lymphocytes, platelets, monocytes, granulocytes, endothelial cells, epithelial cells and fibroblast; it is negative on erythrocytes.
CD46 (MCP, membrane cofactor protein) is a multifunctional cell surface transmembrane protein that binds and inactivates C3b and C4b complement fragments, regulates T cell-induced inflammatory responses by either inhibiting (CD46-1 isoform) or increasing (CD46-2 isoform) the contact hypersensitivity reaction. CD46 also serves as a receptor for several human pathogens (both bacteria and viruses), and its ligation alteres T lymphocyte polarization toward antigen-presenting cells or target cells, inhibiting lymphocyte function. CD46 is a protector of placental tissue and is also expressed on the inner acrosomal membrane of spermatozoa.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: antigen identified by monoclonal antibody TRA-2-10; brain microvascular membrane cofactor; CD46; CD46 antigen, complement regulatory protein; CD46 molecule, complement regulatory protein; complement membrane cofactor protein; complement regulatory protein; MCP; complement activation regulator; measles virus receptor; Membrane cofactor protein; membrane cofactor protein (CD46, trophoblast-lymphocyte cross-reactive antigen); membrane cofactor protein variant 10; membrane cofactor protein variant 7; membrane cofactor protein variant 8; membrane cofactor protein variant 9; MGC26544; soluble membrane cofactor protein variant 11; soluble membrane cofactor protein variant 12; soluble membrane cofactor protein variant 13; TLX; trophoblast leucocyte common antigen; Trophoblast leukocyte common antigen; trophoblast-lymphocyte cross-reactive antigen
Gene Aliases: AHUS2; CD46; MCP; MIC10; TLX; TRA2.10
UniProt ID: (Human) P15529, (Bovine) Q6VE48
Entrez Gene ID: (Human) 4179, (Bovine) 280851
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