Cryo-EM Structures of Brain-Derived G Protein-Coupled Receptors: The First Direct Visualization from Mammalian Brain Tissue. - Wright NJ; Chiu YT; Sakamoto K; Kocak DD; Fordyce BA; Hua K; Huang KL; Scherrer G; Lyons SP; Roth BL (BioRxiv : the preprint server for biology, 2026)