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Orphanet References OMIM Gene GeneReviews HGMD HGNC
last update : 14/03/2007
Symbol C4A
Location 6p21.3
Name complement component 4A deficiency
Other name(s)
  • lupus systemic-like syndrome
  • C4A deficiency
  • Corresponding gene C4A
    Main clinical features
  • systemic lupus erythematosus and type I diabetes mellitus
  • renal disease, severe Henoch-Schonlein purpura
  • Genetic determination not applicable
    Function/system disorder defense and immunity
    Type disease
    Gene product
    Name complement component 4A