Complement Component 7 Deficiency, also known as c7 deficiency, is related to systemic lupus erythematosus and meningococcal meningitis. An important gene associated with Complement Component 7 Deficiency is C7 (Complement C7), and among its related pathways/superpathways are Innate Immune System and Nuclear receptors meta-pathway. Affiliated tissues include skeletal muscle and neutrophil, and related phenotypes are recurrent neisserial infections and decreased circulating complement c7 concentration