{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,10]],"date-time":"2026-06-10T14:53:09Z","timestamp":1781103189690,"version":"3.54.1"},"reference-count":75,"publisher":"Portland Press Ltd.","issue":"5","license":[{"start":{"date-parts":[[2024,10,14]],"date-time":"2024-10-14T00:00:00Z","timestamp":1728864000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["portlandpress.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2024,10,30]]},"abstract":"<jats:p>Voltage-clamp fluorometry (VCF) has revolutionized the study of ion channels by combining electrophysiology with fluorescence spectroscopy. VCF allows ion channel researchers to link dynamic structural changes, measured in real time, to function. Acid-sensing ion channels (ASICs) are Na+-permeable non-voltage-gated ion channels of the central and peripheral nervous system. They function as pH sensors, triggering neuronal excitation when pH decreases. Animal studies have shown the importance of ASICs for pain and fear sensation, learning, and neurodegeneration following ischaemic stroke. This review explores the technical bases and various developments of VCF, including fluorescence resonance energy transfer and the use of unnatural fluorescent amino acids. We provide an overview of VCF applications with a focus on ASICs, detailing how VCF has unveiled proton-induced conformational changes in key regions such as the acid pocket, wrist, and pore, crucial for understanding transitions between closed, open, and desensitized states.<\/jats:p>","DOI":"10.1042\/bst20240165","type":"journal-article","created":{"date-parts":[[2024,10,14]],"date-time":"2024-10-14T13:13:23Z","timestamp":1728911603000},"page":"2167-2177","update-policy":"https:\/\/doi.org\/10.1042\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Voltage-clamp fluorometry for advancing mechanistic understanding of ion channel mechanisms with a focus on acid-sensing ion channels"],"prefix":"10.1042","volume":"52","author":[{"given":"Eleonora","family":"Centonze","sequence":"first","affiliation":[{"name":"Department of Biomedical Sciences, University of Lausanne, 1011 Lausanne, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1755-6198","authenticated-orcid":false,"given":"Stephan","family":"Kellenberger","sequence":"additional","affiliation":[{"name":"Department of Biomedical Sciences, University of Lausanne, 1011 Lausanne, Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"288","published-online":{"date-parts":[[2024,10,14]]},"reference":[{"key":"2024103013074455600_BST-2024-0165CC1","doi-asserted-by":"publisher","first-page":"593","DOI":"10.1021\/jm3011433","article-title":"Ion channels as therapeutic targets: a drug discovery perspective","volume":"56","year":"2013","journal-title":"J. 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