Membrane Cofactor Protein

**Definition:** A ubiquitously expressed complement receptor that binds COMPLEMENT C3B and COMPLEMENT C4B and serves as a co-factor for their inactivation by COMPLEMENT FACTOR I. It also interacts with a wide variety of pathogens and mediates the immune response.

**Tree numbers:** - D12.776.124.486.274.920.124 - D12.776.543.750.705.833.124

**Synonyms:** - CD46 Antigen - Trophoblast-Leukocyte Common Antigen - Antigens, CD46 - CD46 Antigens