Teng and Zeng et al. use cryo-electron microscopy to show that the crescent scaffold of KICSTOR anchors GATOR1 to lysosomes and disruption of the interaction causes mTORC1 hyperactivation and TFE3 mislocalization. KICSTOR enables nutrient-dependent mTORC1 regulation by binding anionic lipids for lysosomal targeting.
- Fei Teng
- Huan Zeng
- Ming-Yuan Su
