Potassium channel tetramerization domain containing 2 is a human gene encoded by the symbol, KCTD2. It may also be known as: BTB/POZ domain-containing protein KCTD2; Potassium channel tetramerization domain-containing protein 2. The encoded protein has an amino acid length of 263 and a mass of 28.5 kDa. Other isoforms may exist. Homologs of this gene exist in other organisms, including: Mouse, Rat, Zebrafish, Frog, Chicken.