SLM1, Phosphatidylinositol 4,5-bisphosphate-binding protein SLM1
Also Known as
SLM1_YEAST, SLM1, LIT2
Together with SLM2, effector of the TORC2- and calcineurin-signaling pathways. Phosphorylated and activated by TORC2 under favorable growth conditions. Mediates actin polarization via inhibition of calcineurin-dependent transcription. Upon nutrient limitation or environmental stress, gets dephosphorylated by calcineurin. Dephosphorylation inhibits its interaction with TORC2, thereby antagonizing TORC2 signaling and mediating calcineurin-dependent actin depolarization. Also functions in heat-induced, calcineurin-mediated uracil permease (FUR4) endocytosis. Heterodimer of SLM1-SLM2. Binds phosphatidylinositol 4,5-bisphosphate, which is required for function. Interacts with the TORC2 subunits AVO2, BIT61 and TOR2. Interacts with the calcineurin catalytic subunits CNA1 and CNA2.