Hydroxycarboxylic acid receptor 2 (HCAR2) has been implicated in cardiovascular and neuroinflammatory diseases. Here, the authors present cryo-EM structures of HCAR2-Gi1 complexes bound to different ligands and provide insights into the mechanisms of both orthosteric and allosteric modulation of HCAR2.
- Chunyou Mao
- Mengru Gao
- Yan Zhang