Recombinant Human Complement factor D (CFD)

Uniprot Id

P00746

Target Species

Human

Target Name

CFD

Target Full Name

Complement factor D

Target Function

Factor D cleaves factor B when the latter is complexed with factor C3b, activating the C3bbb complex, which then becomes the C3 convertase of the alternate pathway. Its function is homologous to that of C1s in the classical pathway.

Target Involvement

Complement factor D deficiency (CFDD)

Target Subcellular Location

Secreted.

Target Protein Families

Peptidase S1 family

Target Synonyms

Adipsin; Adipsin/complement factor D; Adn; C3 convertase activator; CFAD_HUMAN; CFD; Complement factor D; complement factor D preproprotein; D component of complement; DF; FactorD; PFD; Properdin factor D

Target Background

This gene encodes a member of the S1, or chymotrypsin, family of serine peptidases. This protease catalyzes the cleavage of factor B, the rate-limiting step of the alternative pathway of complement activation. This protein also functions as an adipokine, a cell signaling protein secreted by adipocytes, which regulates insulin secretion in mice. Mutations in this gene underlie complement factor D deficiency, which is associated with recurrent bacterial meningitis infections in human patients. Alternative splicing of this gene results in multiple transcript variants. At least one of these variants encodes a preproprotein that is proteolytically processed to generate the mature protease.