PON2 is a symbol for the gene, Paraoxonase 2, in humans. Other names include: Serum paraoxonase/arylesterase 2; Aromatic esterase 2; A-esterase 2; Serum aryldialkylphosphatase 2; PON 2; paraoxonase nirs; arylesterase 2. The encoded protein is an enzyme with an amino acid length of 354 and a mass of 39.4 kDa. PON2 is a member of the Paraoxonase family. This gene shares homology with other species, including: Mouse, Rat, Zebrafish, Frog, Chicken.