PIP5K, or Phosphoinositide kinase, FYVE finger containing, is a human gene encoded by PIKFYVE. It may also be known as: 1-phosphatidylinositol 3-phosphate 5-kinase; Phosphatidylinositol 3-phosphate 5-kinase; FYVE finger-containing phosphoinositide kinase; PIKfyve; Phosphatidylinositol 3-phosphate 5-kinase type III; PIPkin-III; Type III PIP kinase; zinc finger, FYVE domain containing 29; FAB1; HEL373; ZFYVE29. The encoded protein is an enzyme with an amino acid length of 2098 and a mass of 237.1 kDa. Other isoforms may exist. Homologs of this gene exist in other organisms, including: Mouse, Rat, Arabidopsis, Zebrafish, Frog.