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Catalysis of the transmembrane transfer of an ion by a channel that opens in response to a mechanical stress. Catalysis of the energy-independent passage of cations across a lipid bilayer down a concentration gradient. Catalysis of the transmembrane transfer of an ion by a voltage-gated channel. An ion is an atom or group of atoms carrying an electric charge by virtue of having gained or lost one or more electrons. Catalysis of the transfer of an ion from one side of a membrane to the other. Catalysis of energy-independent facilitated diffusion, mediated by passage of a specific solute through a transmembrane aqueous pore or channel. Stereospecificity is not exhibited but this transport may be specific for a particular molecular species or class of molecules. Enables the transfer of a specific substance or group of related substances from one side of a membrane to the other. Catalysis of the transmembrane transfer of an ion by a channel that opens in response to a light stimulus. Catalysis of facilitated diffusion of an ion (by an energy-independent process) by passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism. Catalysis of the energy-independent passage of anions across a lipid bilayer down a concentration gradient. Catalysis of the transmembrane transfer of an ion by a channel that opens when a specific ligand has been bound by the channel complex or one of its constituent parts. Catalysis of energy-independent facilitated diffusion, mediated by passage of a solute through a transmembrane aqueous pore or channel. Stereospecificity is not exhibited but this transport may be specific for a particular molecular species or class of molecules.

View Gene Ontology (GO) Term

GO TERM SUMMARY
Name: ion channel activity
Acc: GO:0005216
Aspect: Molecular Function
Desc: Catalysis of facilitated diffusion of an ion (by an energy-independent process) by passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism.
Proteins in PDR annotated with:
   This term: 831 [Search]
   Term or descendants: 1917 [Search]


[geneontology.org]
INTERACTIVE GO GRAPH

GO:0005216 - ion channel activity (interactive image map)
YRC Informatics Platform - Version 3.0
Created and Maintained by: Michael Riffle