PIKfyve

PIKfyve (1-phosphatidylinositol 3-phosphate 5-kinase) catalyzes the production of PtdIns5P and PtdIns(3,5)biphosphate from the phosphorylation o f D-5 position in PtdIns and phosphatidylinositol-3-phosphate. It is involved in endosome carrier vesicle biogenesis in early endosomes and endomembrane homeostasis.