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. May act 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 (By similarity). In case of bovine viral diarrhea virus (BVDV) infection, involved in virus attachment to cells.
Specificity
Natural and recombinant Bovine Membrane cofactor protein
Subcellular Location
Cytoplasmic vesicle secretory vesicle acrosome inner membrane Single-pass type I membrane protein Inner acrosomal membrane of spermatozoa.
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s) Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORM 2);TISSUE SPECIFICITY
[15/1/25 17:38] Upload to ab completed in less than a minute: 1 file transferred (13.4 Kb/s) Cited for: NUCLEOTIDE SEQUENCE [MRNA] (ISOFORMS 1; 2 AND 3);PROTEIN SEQUENCE OF 49-69 AND 237-254;GLYCOSYLATION;TISSUE SPECIFICITY;INTERACTION WITH BOVINE VIRAL DIARRHEA VIRUS