Complement C5a Proteins

Protein Information

The protein encoded by this gene is the fifth component of complement, which plays an important role in inflammatory and cell killing processes. This protein is comprised of alpha and beta polypeptide chains that are linked by a disulfide bridge. An activation peptide, C5a, which is an anaphylatoxin that possesses potent spasmogenic and chemotactic activity, is derived from the alpha polypeptide via cleavage with a convertase. The C5b macromolecular cleavage product can form a complex with the C6 complement component, and this complex is the basis for formation of the membrane attack complex, which includes additional complement components. Mutations in this gene cause complement component 5 deficiency, a disease where patients show a propensity for severe recurrent infections. Defects in this gene have also been linked to a susceptibility to liver fibrosis and to rheumatoid arthritis.

Synonyms

anaphylatoxin; anaphylatoxin C5a analog; C3 and PZP-like alpha-2-macroglobulin domain-containing protein 4; C4B1; C4B12; C4B2; C4B3; C4B5; C4F; C5; C5a; C5a anaphylatoxin; C5b; C5D; CH; CO4; complement C5; Complement C5 alpha chain; Complement C5 alpha' chain; Complement C5 beta chain; complement component 5; CPAMD3; CPAMD4; DADB-112B14.11; ECLZB; FLJ17816; FLJ17822; FLJ60561; Hc; He; Hemolytic complement; MGC142298; MGC164979; prepro-C5; RGD1561905