Cryo-EM structure of the benzodiazepine-sensitive α1β1γ2S tri-heteromeric GABA_A receptor in complex with GABA.

ABSTRACT: Fast inhibitory neurotransmission in the mammalian nervous system is largely mediated by GABA_A receptors, chloride-selective members of the superfamily of pentameric Cys-loop receptors. Native GABA_A receptors are heteromeric assemblies sensitive to many important drugs, from sedatives to anesthetics and anticonvulsant agents, with mutant forms of GABA_A receptors implicated in multiple neurological diseases. Despite the profound importance of heteromeric GABA_A receptors in neuroscience and medicine, they have proven recalcitrant to structure determination. Here we present the structure of a tri-heteromeric α1β1γ2S_EM GABA_A receptor in complex with GABA, determined by single particle cryo-EM at 3.1-3.8 Å resolution, elucidating

SUBMITTER: Phulera S 

PROVIDER: S-EPMC6086659 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature