eLife Assessment
This study presents a valuable finding on the molecular mechanisms that govern GABAergic inhibitory synapse function. The authors propose that Endophilin A1 serves as a novel regulator of GABAergic synapses by acting as a component of the inhibitory postsynaptic density. The authors have added substantial new analyses that take a wide range of approaches to provide solid support for their conclusions, although one of the reviewers concludes that the premise that gephyrin and endophilin A1 interact requires more robust analysis. The findings are likely to interest a broad audience of scientists focusing on inhibitory synaptic transmission, the excitation-inhibition balance, and its disruption in disorders such as epilepsy.