Entrez Summary: C8 is a component of the complement system and contains three polypeptides, alpha, beta and gamma. This gene encodes the alpha subunit of C8. C8 participates in the formation of the membrane attack complex (MAC). The MAC assembles on bacterial membranes to form a pore, permitting disruption of bacterial membrane organization. Mutations in this gene cause complement C8 alpha-gamma deficiency. [provided by RefSeq, Nov 2008].
UniProt Summary: Constituent of the membrane attack complex (MAC) that plays a key role in the innate and adaptive immune response by forming pores in the plasma membrane of target cells. C8A inserts into the target membrane, but does not form pores by itself. {ECO:0000269|PubMed:17872444, ECO:0000269|PubMed:7440581}.
Pfam DomainsGO Terms
Pfam Domains
MACPF
Ldl recept a
GO Terms
complement binding
membrane attack complex
complement activation, alternative pathway
cytolysis
regulation of complement activation
regulation of humoral immune response
blood microparticle
complement activation, classical pathway
humoral immune response mediated by circulating immunoglobulin
complement activation
immunoglobulin mediated immune response
B cell mediated immunity
lymphocyte mediated immunity
protein-containing complex binding
adaptive immune response based on somatic recombination of immune receptors built from immunoglobulin superfamily domains
humoral immune response
regulation of immune effector process
adaptive immune response
activation of immune response
leukocyte mediated immunity
innate immune response
positive regulation of immune response
defense response to other organism
immune effector process
positive regulation of immune system process
regulation of immune response
response to other organism
response to external biotic stimulus
response to biotic stimulus
defense response
extracellular space
regulation of immune system process
immune response
extracellular region
membrane
CRISPR Data
Compound HitMost Correlated Genes in ChemogenomicsTissues where Essential in the Avana Dataset (DepMap 20Q1)