Phosphatidylinositol phosphate kinase (PIPK)

Phosphatidylinositol phosphate kinases are a family of lipid kinases that catalyze phosphorylation of phosphatidylinositol monophosphates to produce bisphosphate derivatives such as PI(4,5)P₂ and PI(3,5)P₂, which are central to signal transduction, cell membrane trafficking, and organelle identity[3]. There are three main types: Type I (PIP5Ks), type II (PIP4Ks), and type III (PIKfyve), each with different substrate specificity and roles in various cellular compartments[3][1]. Dysregulation or mutation can contribute to human diseases including cancer, diabetes, infections, and are being explored as therapeutic targets[3][1][6].

Other names

Phosphatidylinositol phosphate kinasePIP kinasePIPKPI4P5KPIP5KPIP4KPIKfyve

Enzyme inhibition (e.g., kinase inhibitors reduce phosphoinositide signaling and trafficking); Modulation of lipid signaling cascades