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PIKFYVE belongs to a large family of lipid kinases that alter the phosphorylation status of intracellular phosphatidylinositol. The content of phosphatidylinositol 3,5-bisphosphateP2) in endosomal membranes changes dynamically with fission and fusion events that generate or absorb intracellular transport vesicles. PIKFYVE is the PtdIns(3,5)P2-producing component of a trimolecular complex that tightly regulates the level of PtdIns(3,5)P2. Other components of this complex are the PIKFYVE activator VAC14 and the PtdIns(3,5)P2 phosphatase FIG4. In addition to its phosphoinositide 5-kinase activity, PIKFYVE also has protein kinase activity. For a review, see Shisheva.
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Protein Aliases: 1-phosphatidylinositol 3-phosphate 5-kinase; 1-phosphatidylinositol-3-phosphate 5-kinase; epididymis luminal protein 37; FYVE finger-containing phosphoinositide kinase; Phosphatidylinositol 3-phosphate 5-kinase; Phosphatidylinositol 3-phosphate 5-kinase type III; phosphatidylinositol-3-phosphate/phosphatidylinositol 5-kinase, type III; phosphoinositide kinase, FYVE finger containing; PIKfyve; PIPkin-III; Serine-protein kinase PIKFYVE; type III PIP kinase; zinc finger, FYVE domain containing 29
Gene Aliases: CFD; FAB1; HEL37; KIAA0981; PIKFYVE; PIP5K; PIP5K3; ZFYVE29
UniProt ID: (Human) Q9Y2I7
Entrez Gene ID: (Human) 200576