GABAB receptors are the most abundant inhibitory G protein–coupled receptors in the mammalian brain. Using high-resolution proteomics, the authors show that native GABAB receptors are macromolecular complexes with previously unknown complexity in subunit composition. This molecular diversity in structure and assembly encodes the diversity of GABAB physiology in the CNS.
- Jochen Schwenk
- Enrique Pérez-Garci
- Bernd Fakler