PIP4K2A encodes a lipid kinase that catalyzes the phosphorylation of phosphatidylinositol 5-phosphate (PtdIns5P) to generate phosphatidylinositol 4,5-bisphosphate (PtdIns(4,5)P2), a critical signaling lipid 1. Beyond its canonical enzymatic function, PIP4K2A exhibits important kinase-independent roles in cellular regulation. The protein modulates autophagy through the AKT/mTOR/ATG13 pathway and is essential for autophagosome-lysosome fusion 2. PIP4K2A also functions in RNA processing, where it regulates pre-mRNA splicing through interactions with RNA-binding proteins like IGF2BP3 3. In cancer biology, PIP4K2A displays context-dependent roles. It acts as a tumor suppressor in PTEN-deficient glioblastoma by targeting the PI3K pathway component p85 for proteasome-mediated degradation, thereby negatively regulating PI3K signaling 4. Conversely, in acute myeloid leukemia, elevated PIP4K2A expression correlates with poor cytogenetic risk and adverse clinical outcomes 5. Genetic polymorphisms in PIP4K2A are associated with acute lymphoblastic leukemia susceptibility across multiple ethnic populations 6. These findings highlight PIP4K2A as a multifunctional protein with both canonical kinase activity and non-canonical regulatory functions that significantly impact cellular homeostasis and disease progression.