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GO:0022857
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transmembrane transporter activity
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Enables the transfer of a substance from one side of a membrane to the other. |
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GO:0022891
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substrate-specific transmembrane transporter activity
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Enables the transfer of a specific substance or group of related substances from one side of a membrane to the other. |
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GO:0046873
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metal ion transmembrane transporter activity
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Enables the transfer of metal ions from one side of a membrane to the other. |
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GO:0005215
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transporter activity
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Enables the directed movement of substances (such as macromolecules, small molecules, ions) into, out of or within a cell, or between cells. |
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GO:0005216
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ion channel activity
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Enables the 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. May be either selective (it enables passage of a specific ion only) or non-selective (it enables passage of two or more ions of same charge but different size). |
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GO:0008324
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cation transmembrane transporter activity
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Enables the transfer of cation from one side of the membrane to the other. |
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GO:0015079
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potassium ion transmembrane transporter activity
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Enables the transfer of potassium ions (K+) from one side of a membrane to the other. |
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GO:0005249
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voltage-gated potassium channel activity
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Enables the transmembrane transfer of a potassium ion by a voltage-gated channel. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded. |
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GO:0005267
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potassium channel activity
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Enables the selective, facilitated diffusion of a potassium ion (by an energy-independent process) involving passage through a transmembrane aqueous pore or channel without evidence for a carrier-mediated mechanism. |
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GO:0015075
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ion transmembrane transporter activity
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Enables the transfer of an ion from one side of a membrane to the other. |
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GO:0003674
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molecular_function
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Elemental activities, such as catalysis or binding, describing the actions of a gene product at the molecular level. A given gene product may exhibit one or more molecular functions. |
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GO:0022890
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inorganic cation transmembrane transporter activity
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Enables the transfer of inorganic cations from one side of a membrane to the other. Inorganic cations are atoms or small molecules with a positive charge that do not contain carbon in covalent linkage. |
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GO:0022892
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substrate-specific transporter activity
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Enables the directed movement of a specific substance or group of related substances (such as macromolecules, small molecules, ions) into, out of or within a cell, or between cells. |
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GO:0022803
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passive transmembrane transporter activity
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Enables the transfer of a solute from one side of the membrane to the other, down the solute's concentration gradient. |
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GO:0015267
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channel activity
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Enables the 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. |
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GO:0015077
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monovalent inorganic cation transmembrane transporter activity
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Enables the transfer of a inorganic cations with a valency of one from one side of a membrane to the other. Inorganic cations are atoms or small molecules with a positive charge that do not contain carbon in covalent linkage. |
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GO:0005261
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cation channel activity
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Enables the selective, energy-independent passage of cations across a lipid bilayer down a concentration gradient. |
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GO:0022836
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gated channel activity
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Enables the transmembrane transfer of a solute by a channel that opens in response to a specific stimulus. |
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GO:0022838
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substrate-specific channel activity
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Enables the 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. |
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GO:0005244
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voltage-gated ion channel activity
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Enables 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. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded. |
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GO:0022832
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voltage-gated channel activity
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Enables the transmembrane transfer of a solute by a channel whose open state is dependent on the voltage across the membrane in which it is embedded. |
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GO:0022843
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voltage-gated cation channel activity
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Enables the transmembrane transfer of a cation by a voltage-gated channel. A cation is a positively charged ion. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded. |
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GO:0086008
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voltage-gated potassium channel activity involved in cardiac muscle cell action potential repolarization
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Enables the transmembrane transfer of a potassium ion by a voltage-gated channel through the plasma membrane of a cardiac muscle cell contributing to the repolarization phase of an action potential. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded. |
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GO:0086090
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voltage-gated potassium channel activity involved in SA node cell action potential repolarization
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Enables the transmembrane transfer of a potassium ion by a voltage-gated channel through the plasma membrane of an SA node cell contributing to the repolarization phase of an action potential. A voltage-gated channel is a channel whose open state is dependent on the voltage across the membrane in which it is embedded. |
