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Related Concept Videos

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...
Formation of Complex Ions03:45

Formation of Complex Ions

A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
Ligand-gated Ion Channels01:19

Ligand-gated Ion Channels

Ligand-gated ion channels are transmembrane proteins with a channel for ions to pass through and a binding site for a ligand. The channel opens only when a ligand attaches to the binding site.
Three Subfamilies of Ligand-gated Ion Channels
Ligand-gated ion channels fall into three subfamilies. The 'Cys-loop' includes the nicotinic acetylcholine receptors, γ-aminobutyric acid (GABA), glycine, and 5-hydroxytryptamine receptors. The second one is the 'Pore-loop' channels that include the...
Ligand-gated Ion Channels01:19

Ligand-gated Ion Channels

Ligand-gated ion channels are transmembrane proteins with a channel for ions to pass through and a binding site for a ligand. The channel opens only when a ligand attaches to the binding site.
Three Subfamilies of Ligand-gated Ion Channels
Ligand-gated ion channels fall into three subfamilies. The 'Cys-loop' includes the nicotinic acetylcholine receptors, γ-aminobutyric acid (GABA), glycine, and 5-hydroxytryptamine receptors. The second one is the 'Pore-loop' channels that include the...
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...

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Related Experiment Video

Updated: Jun 8, 2026

Capturing the Interaction Kinetics of an Ion Channel Protein with Small Molecules by the Bio-layer Interferometry Assay
10:41

Capturing the Interaction Kinetics of an Ion Channel Protein with Small Molecules by the Bio-layer Interferometry Assay

Published on: March 7, 2018

Simulating complex ion channel kinetics with IonChannelLab.

Jose A De Santiago-Castillo1, Manuel Covarrubias, Jorge E Sánchez-Rodríguez

  • 1Instituto de Física y Matemáticas, Universidad Michoacana de San Nicolás de Hidalgo, Morelia, Mexico. desantiago@ifm.umich.mx

Channels (Austin, Tex.)
|October 12, 2010
PubMed
Summary

IonChannelLab simplifies complex ion channel simulations. This software tool uses Markov chain models for predicting transport protein activity, making in silico experiments more accessible.

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Related Experiment Videos

Last Updated: Jun 8, 2026

Capturing the Interaction Kinetics of an Ion Channel Protein with Small Molecules by the Bio-layer Interferometry Assay
10:41

Capturing the Interaction Kinetics of an Ion Channel Protein with Small Molecules by the Bio-layer Interferometry Assay

Published on: March 7, 2018

Recapitulation of an Ion Channel IV Curve Using Frequency Components
10:14

Recapitulation of an Ion Channel IV Curve Using Frequency Components

Published on: February 8, 2011

Computational Modeling of Retinal Neurons for Visual Prosthesis Research - Fundamental Approaches
10:50

Computational Modeling of Retinal Neurons for Visual Prosthesis Research - Fundamental Approaches

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Area of Science:

  • Computational Biology
  • Biophysics
  • Pharmacology

Background:

  • In silico simulation using Markov chains effectively models transport proteins like ion channels.
  • Realistic modeling of voltage- or ligand-gated ion channels involves complex kinetic schemes and differential equations, posing challenges for researchers.

Purpose of the Study:

  • To develop a user-friendly software tool, IonChannelLab, for simplifying the modeling and simulation of ion channel behavior.
  • To provide a versatile platform for simulating various experimental conditions and ion channel types.

Main Methods:

  • Developed IonChannelLab, a software tool featuring a Graphical User Interface and a simulation library.
  • Implemented support for channels exhibiting Ohmic or Goldman-Hodgkin-Katz behavior.
  • Enabled independent or simultaneous variation of voltage, ligand concentration, and ionic concentration in simulations.

Main Results:

  • IonChannelLab can simulate time-courses of ionic and gating currents, single channel behavior, and steady-state conditions.
  • The software facilitates the simulation of diverse experimental scenarios, enhancing the study of ion channel function.

Conclusions:

  • IonChannelLab offers a powerful and accessible solution for in silico ion channel research.
  • The tool streamlines the process of modeling complex ion channel kinetics and predicting their activity under various conditions.