ArticleProceedings of the National Academy of Sciences of the United States of America2022
KCNQ2 and KCNQ5 form heteromeric channels independent of KCNQ3.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed, 32 citations in OpenAlex.
- The novel role of GADD45A in the etiology of autism: modulating neuronal excitability via TET1/R-loop dependent regulation of KCNQ5.Molecular psychiatry · 2026Article
- Mislocalization of KCNQ2 Channels as a Pathogenic Mechanism in KCNQ2 Developmental and Epileptic Encephalopathy.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026Article
- 4-Aminopyridine induced hyperpolarizing oscillations in pediatric human epileptic tissue are network-driven potassium currents that are abolished by activation of KCNQ2-5 (Kv7.2-Kv7.5) channels.Neurobiology of disease · 2026Article
- APEX2 and TurboID define unique subcellular proteomes.Scientific reports · 2025Article
- Molecular dynamics of the pathogenic KCNQ2 variant G256W reveal mechanisms of channel dysfunction in epileptic encephalopathy.bioRxiv : the preprint server for biology · 2025Article
- Phosphatidylinositol 4,5-bisphosphate activation mechanism of human KCNQ5.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- The conductance of KCNQ2 and its pathogenic variants is determined by individual subunit gating.Science advances · 2025Article
- Novel KCNQ2 missense variant expands the genotype spectrum of DEE7.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024Article
- Discovery of a potent, Kv7.3-selective potassium channel opener from a Polynesian traditional botanical anticonvulsant.Communications chemistry · 2024Article
- Review
- KAddiction biology · 2024Article
- A small-molecule activation mechanism that directly opens the KCNQ2 channel.Nature chemical biology · 2024Article
- Glial KCNQ KNeuron · 2024Article
- Phox2b-expressing neurons contribute to breathing problems in Kcnq2 loss- and gain-of-function encephalopathy models.Nature communications · 2023Article
- Ancient medicinal plant rosemary contains a highly efficacious and isoform-selective KCNQ potassium channel opener.Communications biology · 2023Article
- KCNQ2 channels regulate the population activity of neonatal GABAergic neuronsFrontiers in neurology · 2023Article
- Site and Mechanism of ML252 Inhibition of Kv7 Voltage-Gated Potassium Channels.Function (Oxford, England) · 2023Article
- Kv Channel Ancillary Subunits: Where Do We Go from Here?Physiology (Bethesda, Md.) · 2022Review
- Distinctive mechanisms of epilepsy-causing mutants discovered by measuring S4 movement in KCNQ2 channels.eLife · 2022Article
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
KCNQ2 and KCNQ3 channels are associated with multiple neurodevelopmental disorders and are also therapeutic targets for neurological and neuropsychiatric diseases. For more than two decades, it has been thought that most KCNQ channels in the brain are either KCNQ2/3 or KCNQ3/5 heteromers. Here, we investigated the potential heteromeric compositions of KCNQ2-containing channels. We applied split-intein protein trans-splicing to form KCNQ2/5 tandems and coexpressed these with and without KCNQ3. Unexpectedly, we found that KCNQ2/5 tandems form functional channels independent of KCNQ3 in heterologous cells. Using mass spectrometry, we went on to demonstrate that KCNQ2 associates with KCNQ5 in native channels in the brain, even in the absence of KCNQ3. Additionally, our functional heterologous expression data are consistent with the formation of KCNQ2/3/5 heteromers. Thus, the composition of KCNQ channels is more diverse than has been previously recognized, necessitating a re-examination of the genotype/phenotype relationship of KCNQ2 pathogenic variants.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.