ArticleScience advances2022
Lateral fenestrations in the extracellular domain of the glycine receptor contribute to the main chloride permeation pathway.
Article in Science advances, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
What it found
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Who cites it
5 citing papers in PubMed, 10 citations in OpenAlex.
- Characterization of an open-channel structure and lateral conduction pathway in the cation-selective pentameric ligand-gated ion channel, ELIC.The Journal of general physiology · 2026Article
- Structure-Function Studies of Pentameric Ligand-Gated Ion Channels: Combining Experimental and Computational Approaches.Advances in experimental medicine and biology · 2026Review
- Characterization of an Open-Channel Structure and Lateral Conduction Pathway in the Cation-Selective Pentameric Ligand-Gated Ion Channel, ELIC.bioRxiv : the preprint server for biology · 2025Article
- Exploring the Activation Process of the Glycine Receptor.Journal of the American Chemical Society · 2024Article
- Wordom update 2: A user-friendly program for the analysis of molecular structures and conformational ensembles.Computational and structural biotechnology journal · 2023Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Glycine receptors (GlyRs) are ligand-gated ion channels mediating signal transduction at chemical synapses. Since the early patch-clamp electrophysiology studies, the details of the ion permeation mechanism have remained elusive. Here, we combine molecular dynamics simulations of a zebrafish GlyR-α1 model devoid of the intracellular domain with mutagenesis and single-channel electrophysiology of the full-length human GlyR-α1. We show that lateral fenestrations between subunits in the extracellular domain provide the main translocation pathway for chloride ions to enter/exit a central water-filled vestibule at the entrance of the transmembrane channel. In addition, we provide evidence that these fenestrations are at the origin of current rectification in known anomalous mutants and design de novo two inward-rectifying channels by introducing mutations within them. These results demonstrate the central role of lateral fenestrations on synaptic neurotransmission.
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Registered trials
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