Description
Product Characteristics:
Potent inhibitor of the complement membrane attack complex (MAC) action. Acts by binding to the C8 and/or C9 complements of the assembling MAC, thereby preventing incorporation of the multiple copies of C9 required for complete formation of the osmolytic pore. This inhibitor appears to be species-specific. Involved in signal transduction for T-cell activation complexed to a protein tyrosine kinase. The soluble form from urine retains its specific complement binding activity, but exhibits greatly reduced ability to inhibit MAC assembly on cell membranes.
Subcellular location: Cell membrane
Synonyms: 1F5, EJ16, EJ3, EL32, G344, MIN1, MIN2, MIN3, MIRL, HRF2, MACIF, MEM43, MIC11, MSK21, 16.3A5, HRF-2, MAC-IP, p18-2, CD59 glycoprotein, 1F5 antigen, 2 kDa homologous restriction factor, MAC-inhibitory protein, MEM43 antigen, Membrane attack complex inhibition factor, Membrane inhibitor of reactive lysis, Protectin, CD59
Target Information: This gene encodes a cell surface glycoprotein that regulates complement-mediated cell lysis, and it is involved in lymphocyte signal transduction. This protein is a potent inhibitor of the complement membrane attack complex, whereby it binds complement C8 and/or C9 during the assembly of this complex, thereby inhibiting the incorporation of multiple copies of C9 into the complex, which is necessary for osmolytic pore formation. This protein also plays a role in signal transduction pathways in the activation of T cells. Mutations in this gene cause CD59 deficiency, a disease resulting in hemolytic anemia and thrombosis, and which causes cerebral infarction. Multiple alternatively spliced transcript variants, which encode the same protein, have been identified for this gene. [provided by RefSeq, Jul 2008]