Abstract
AbstractPhosphatidylinositol 5‐phosphate 4‐kinase, type II, gamma (PIP4K2C) remains a poorly understood lipid kinase with minimal enzymatic activity but potential scaffolding roles in immune modulation and autophagy‐dependent catabolism. Achieving potent and selective agents for PIP4K2C while sparing other lipid and non‐lipid kinases has been challenging. Here, we report the discovery of the highly potent PIP4K2C binder TMX‐4102, which shows exclusive binding selectivity for PIP4K2C. Furthermore, we elaborated the PIP4K2C binder into TMX‐4153, a bivalent degrader capable of rapidly and selectively degrading endogenous PIP4K2C. Collectively, our work demonstrates that PIP4K2C is a tractable and degradable target, and that TMX‐4102 and TMX‐4153 are useful leads to further interrogate the biological roles and therapeutic potential of PIP4K2C.
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