Han, Zhou Jin, Lei Platisa, Jelena Cohen, Lawrence B. Baker, Bradley J. Pieribone, Vincent A. 2024-01-20T11:02:55Z 2024-01-20T11:02:55Z 2021-09-05 2013-11-27 1932-6203 https://pubs.kist.re.kr/handle/201004/127426 We previously reported the discovery of a fluorescent protein voltage probe, ArcLight, and its derivatives that exhibit large changes in fluorescence intensity in response to changes of plasma membrane voltage. ArcLight allows the reliable detection of single action potentials and sub-threshold activities in individual neurons and dendrites. The response kinetics of ArcLight (T1-on similar to 10 ms, T2-on similar to 50 ms) are comparable with most published genetically-encoded voltage probes. However, probes using voltage-sensing domains other than that from the Ciona intestinalis voltage sensitive phosphatase exhibit faster kinetics. Here we report new versions of ArcLight, in which the Ciona voltage-sensing domain was replaced with those from chicken, zebrafish, frog, mouse or human. We found that the chicken and zebrafish-based ArcLight exhibit faster kinetics, with a time constant (T) less than 6ms for a 100 mV depolarization. Although the response amplitude of these two probes (8-9%) is not as large as the Ciona-based ArcLight (similar to 35%), they are better at reporting action potentials from cultured neurons at higher frequency. In contrast, probes based on frog, mouse and human voltage sensing domains were either slower than the Ciona-based ArcLight or had very small signals. English PUBLIC LIBRARY SCIENCE RECOMBINANT ADENOASSOCIATED VIRUS ACTION-POTENTIALS MAMMALIAN-CELLS SENSING DOMAIN PHOSPHATASE NEURONS SENSOR CHANNEL TPTE GENE Fluorescent Protein Voltage Probes Derived from ArcLight that Respond to Membrane Voltage Changes with Fast Kinetics Article 10.1371/journal.pone.0081295 1 PLOS ONE, v.8, no.11 PLOS ONE 8 11 scie scopus 000327652100071 2-s2.0-84894226769 Multidisciplinary Sciences Science & Technology - Other Topics Article RECOMBINANT ADENOASSOCIATED VIRUS ACTION-POTENTIALS MAMMALIAN-CELLS SENSING DOMAIN PHOSPHATASE NEURONS SENSOR CHANNEL TPTE GENE