What does FAS gene mean in medical term?

FAS gene means: The FAS gene is a gene that codes for one of many proteins essential to apoptosis. This is the process by which cells cease to exist. ALPS, an autoimmune lymphoproliferative disorder that causes lymphocytes not to stop growing on time, has mutations in the FAS gene. Autoimmunity is a state in which lymphocytes remain around and attack the body’s tissues. About 83 percent of ALPS cases are caused by mutations in FAS.
(in Medical Dictionary)

What else does FAS gene mean?

On chromosome 10,q24.1 is the FAS gene. This gene belongs to the 6th member of the superfamily tumor necrosis factors receptor. FAS now goes by the official name TNFRSF6. The confusion surrounding FAS has led to it being called APO-1 and APT1 as well as CD95.
(in Medical Dictionary)