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- Table of Contents
Facts about Membrane cofactor protein.
Also acts as a costimulatory factor for T- cells which induces the differentiation of CD4+ to T-regulatory 1 cells. T-regulatory 1 cells suppress immune responses by secreting interleukin-10, and therefore are thought to prevent autoimmunity.
Human | |
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Gene Name: | CD46 |
Uniprot: | P15529 |
Entrez: | 4179 |
Belongs to: |
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No superfamily |
AHUS2; CD46 antigen; CD46 molecule, complement regulatory protein; CD46; MCP; membrane cofactor protein (CD46, trophoblast-lymphocyte cross-reactive antigen); MIC10; TLXcomplement regulatory protein; trophoblast leucocyte common antigen; Trophoblast leukocyte common antigen; trophoblast-lymphocyte cross-reactive antigen
Mass (kDA):
43.747 kDA
Human | |
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Location: | 1q32.2 |
Sequence: | 1; NC_000001.11 (207752038..207795516) |
Expressed by all cells except erythrocytes.
Cytoplasmic vesicle, secretory vesicle, acrosome inner membrane; Single-pass type I membrane protein. 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.
PMID: 3260937 by Lublin D.M., et al. Molecular cloning and chromosomal localization of human membrane cofactor protein (MCP). Evidence for inclusion in the multigene family of complement-regulatory proteins.
PMID: 2050389 by Purcell D.F., et al. Alternatively spliced RNAs encode several isoforms of CD46 (MCP), a regulator of complement activation.