Properdin Deficiency, X-Linked, also known as complement factor properdin deficiency, is related to meningitis and complement deficiency. An important gene associated with Properdin Deficiency, X-Linked is CFP (Complement Factor Properdin), and among its related pathways/superpathways are Diseases of hemostasis and Vitamin D receptor pathway. Affiliated tissues include lung and kidney, and related phenotypes are abnormality of metabolism/homeostasis and dysfunctional alternative complement pathway