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Related Concept Videos

Mechanically-gated Ion Channels01:12

Mechanically-gated Ion Channels

Mechanically-gated ion channels are proteins found in eukaryotic and prokaryotic cell membranes that open in response to mechanical stress. Tension, compression, swelling, and shear stress can alter the conformation of the protein, opening a transmembrane channel that allows the passage of ions for signal transmission. In eukaryotes, mechanically-gated channels are distributed in several regions like the neurons, lungs, skin, bladder, and heart, where they play critical roles in numerous...
Mechanically-gated Ion Channels01:12

Mechanically-gated Ion Channels

Mechanically-gated ion channels are proteins found in eukaryotic and prokaryotic cell membranes that open in response to mechanical stress. Tension, compression, swelling, and shear stress can alter the conformation of the protein, opening a transmembrane channel that allows the passage of ions for signal transmission. In eukaryotes, mechanically-gated channels are distributed in several regions like the neurons, lungs, skin, bladder, and heart, where they play critical roles in numerous...
Voltage-gated Ion Channels01:26

Voltage-gated Ion Channels

Voltage-gated ion channels are transmembrane proteins that open and close in response to changes in the membrane potential. They are present on the membranes of all electrically excitable cells such as neurons, heart, and muscle cells.
Generally, all voltage-gated ion channels have a 'voltage-sensing domain' that spans the lipid bilayer. The charged residues in the sensor move in response to the membrane potential changes that open the channel allowing ions movement. There are several types of...
Voltage-gated Ion Channels01:26

Voltage-gated Ion Channels

Voltage-gated ion channels are transmembrane proteins that open and close in response to changes in the membrane potential. They are present on the membranes of all electrically excitable cells such as neurons, heart, and muscle cells.
Generally, all voltage-gated ion channels have a 'voltage-sensing domain' that spans the lipid bilayer. The charged residues in the sensor move in response to the membrane potential changes that open the channel allowing ions movement. There are several types of...
Ligand-Gated Ion Channel Receptor: Gating Mechanism01:30

Ligand-Gated Ion Channel Receptor: Gating Mechanism

Ligand-gated ion channels are transmembrane proteins that play a vital role in intercellular communication and functions of the nervous system. They allow the influx of ions across the membrane once the neurotransmitter binds, allowing the subsequent transmission of electrical excitation across the neurons. Other ligand-gated ion channels, like the γ-aminobutyric acid (GABA) receptor, permit anions like chloride into the cells on the binding of the GABA molecule. Their entry into the cell...
Ion Channels01:19

Ion Channels

The movement of ions like sodium, potassium, and calcium into and out of the cell is essential to maintain the electrochemical gradient in living cells. The ion channels—a class of membrane transport proteins—help maintain this ionic gradient for the smooth functioning of physiological activities such as maintaining cell size and volume, conducting nerve impulses, and gas and nutrient exchange.
Ion channels are specialized integral membrane proteins on the plasma membrane that allow specific...

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Related Experiment Video

Updated: Jun 2, 2026

Multifunctional, Micropipette-based Method for Incorporation And Stimulation of Bacterial Mechanosensitive Ion Channels in Droplet Interface Bilayers
09:54

Multifunctional, Micropipette-based Method for Incorporation And Stimulation of Bacterial Mechanosensitive Ion Channels in Droplet Interface Bilayers

Published on: November 19, 2015

Mechanosensitive TMEM63 Ion Channels: Structure, Gating Mechanism, and Emerging Physiological and Pathological Roles.

Jin Ou1, Yunqing Zhou2, Chaoqun Chen1

  • 1Department of Neuroscience, University of Wisconsin-Madison, Madison, WI, USA.

Results and Problems in Cell Differentiation
|June 1, 2026
PubMed
Summary
This summary is machine-generated.

The TMEM63 family of mechanosensitive ion channels are novel mammalian force sensors. These channels have unique structures and functions, playing vital roles in the nervous system and potentially causing disease when dysregulated.

Keywords:
Force sensingHydrophobic latchIon channelLipid cleftMechanosensitiveMechanotransductionMonomericNeurodegenerationNeurodevelopmentalOSCAScramblaseTMEM63

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Single-Molecule Imaging of Lateral Mobility and Ion Channel Activity in Lipid Bilayers using Total Internal Reflection Fluorescence (TIRF) Microscopy
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Single-Molecule Imaging of Lateral Mobility and Ion Channel Activity in Lipid Bilayers using Total Internal Reflection Fluorescence (TIRF) Microscopy

Published on: February 17, 2023

Purification and Reconstitution of TRPV1 for Spectroscopic Analysis
11:53

Purification and Reconstitution of TRPV1 for Spectroscopic Analysis

Published on: July 3, 2018

Related Experiment Videos

Last Updated: Jun 2, 2026

Multifunctional, Micropipette-based Method for Incorporation And Stimulation of Bacterial Mechanosensitive Ion Channels in Droplet Interface Bilayers
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Multifunctional, Micropipette-based Method for Incorporation And Stimulation of Bacterial Mechanosensitive Ion Channels in Droplet Interface Bilayers

Published on: November 19, 2015

Single-Molecule Imaging of Lateral Mobility and Ion Channel Activity in Lipid Bilayers using Total Internal Reflection Fluorescence (TIRF) Microscopy
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Single-Molecule Imaging of Lateral Mobility and Ion Channel Activity in Lipid Bilayers using Total Internal Reflection Fluorescence (TIRF) Microscopy

Published on: February 17, 2023

Purification and Reconstitution of TRPV1 for Spectroscopic Analysis
11:53

Purification and Reconstitution of TRPV1 for Spectroscopic Analysis

Published on: July 3, 2018

Area of Science:

  • Biophysics
  • Molecular Biology
  • Cell Biology

Background:

  • The TMEM63 family represents a distinct group of mammalian mechanosensitive ion channels.
  • These channels are evolutionarily linked to plant OSCA channels, suggesting conserved force-sensing mechanisms.
  • Emerging evidence highlights their critical roles in various physiological processes.

Purpose of the Study:

  • To review recent advancements in the understanding of TMEM63 channel structure and function.
  • To elucidate the unique gating mechanisms and force-sensing elements of TMEM63 channels.
  • To explore the physiological roles and disease implications of TMEM63 family members.

Main Methods:

  • Structural biology techniques (e.g., cryo-EM) to determine channel architecture.
  • Functional assays (e.g., electrophysiology, lipid scrambling assays) to characterize channel activity.
  • Genetic and animal model studies to investigate in vivo functions and disease relevance.

Main Results:

  • TMEM63 channels are monomeric, high-threshold mechanotransducers with a unique structure, including an extended IL2 domain and a lipid-accessible pore.
  • Their gating mechanism is distinct from other known mechanosensitive ion channels.
  • Evidence suggests TMEM63 channels are involved in essential functions in the nervous system and other tissues, with implications for neurological and systemic diseases.

Conclusions:

  • TMEM63 channels possess unique structural and functional properties that differentiate them from other mechanosensitive ion channels.
  • These channels play crucial roles in mechanotransduction, impacting cellular and organismal health.
  • Further research into TMEM63 channels is essential for understanding their roles in health and disease and for developing potential therapeutic strategies.