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Voltage gating of mechanosensitive PIEZO channels

Author

Listed:
  • Mirko Moroni

    (Max-Delbrück Center for Molecular Medicine)

  • M. Rocio Servin-Vences

    (Max-Delbrück Center for Molecular Medicine)

  • Raluca Fleischer

    (Max-Delbrück Center for Molecular Medicine)

  • Oscar Sánchez-Carranza

    (Max-Delbrück Center for Molecular Medicine)

  • Gary R. Lewin

    (Max-Delbrück Center for Molecular Medicine
    Charité Universitätsmedizin)

Abstract

Mechanosensitive PIEZO ion channels are evolutionarily conserved proteins whose presence is critical for normal physiology in multicellular organisms. Here we show that, in addition to mechanical stimuli, PIEZO channels are also powerfully modulated by voltage and can even switch to a purely voltage-gated mode. Mutations that cause human diseases, such as xerocytosis, profoundly shift voltage sensitivity of PIEZO1 channels toward the resting membrane potential and strongly promote voltage gating. Voltage modulation may be explained by the presence of an inactivation gate in the pore, the opening of which is promoted by outward permeation. Older invertebrate (fly) and vertebrate (fish) PIEZO proteins are also voltage sensitive, but voltage gating is a much more prominent feature of these older channels. We propose that the voltage sensitivity of PIEZO channels is a deep property co-opted to add a regulatory mechanism for PIEZO activation in widely different cellular contexts.

Suggested Citation

  • Mirko Moroni & M. Rocio Servin-Vences & Raluca Fleischer & Oscar Sánchez-Carranza & Gary R. Lewin, 2018. "Voltage gating of mechanosensitive PIEZO channels," Nature Communications, Nature, vol. 9(1), pages 1-15, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-03502-7
    DOI: 10.1038/s41467-018-03502-7
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    Cited by:

    1. Luis O. Romero & Rebeca Caires & A. Kaitlyn Victor & Juanma Ramirez & Francisco J. Sierra-Valdez & Patrick Walsh & Vincent Truong & Jungsoo Lee & Ugo Mayor & Lawrence T. Reiter & Valeria Vásquez & Jul, 2023. "Linoleic acid improves PIEZO2 dysfunction in a mouse model of Angelman Syndrome," Nature Communications, Nature, vol. 14(1), pages 1-20, December.
    2. Sine Yaganoglu & Konstantinos Kalyviotis & Christina Vagena-Pantoula & Dörthe Jülich & Benjamin M. Gaub & Maaike Welling & Tatiana Lopes & Dariusz Lachowski & See Swee Tang & Armando Del Rio Hernandez, 2023. "Highly specific and non-invasive imaging of Piezo1-dependent activity across scales using GenEPi," Nature Communications, Nature, vol. 14(1), pages 1-16, December.
    3. Clement Verkest & Irina Schaefer & Timo A. Nees & Na Wang & Juri M. Jegelka & Francisco J. Taberner & Stefan G. Lechner, 2022. "Intrinsically disordered intracellular domains control key features of the mechanically-gated ion channel PIEZO2," Nature Communications, Nature, vol. 13(1), pages 1-14, December.

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