AC5 is an alias for the gene, Adenylate cyclase 5, in humans. Other names include: Adenylate cyclase type 5; ATP pyrophosphate-lyase 5; Adenylate cyclase type V; Adenylyl cyclase 5; Adenylate cyclase type 5 ; FDFM. The encoded protein is an enzyme with an amino acid length of 1261 and a mass of 138.9 kDa. Other isoforms may exist. AC5 is a member of the Adenylyl cyclase class-4/guanylyl cyclase family. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Chicken.