PX3 is an alias for the gene, Pannexin 3, in humans. Other names include: Pannexin-3. The encoded protein has an amino acid length of 392 and a mass of 44.7 kDa. PX3 is a member of the Pannexin family. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog, Chicken.