FB2026_03 , released September 17, 2026
CV Term Report
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General Information
Term small conductance calcium-activated potassium channel activity ID (Ontology) GO:0016286 (Gene Ontology)
Definition Enables the transmembrane transfer of potassium by a channel with a unit conductance of 2 to 20 picoSiemens that opens in response to stimulus by internal calcium ions. Small conductance calcium-activated potassium channels are more sensitive to calcium than are large conductance calcium-activated potassium channels. Transport by a channel involves catalysis of facilitated diffusion of a solute (by an energy-independent process) involving passage through a transmembrane aqueous pore or channel, without evidence for a carrier-mediated mechanism.[ MIM:602754 ]
Also Known As"SK calcium-activated potassium channel activity" ; "SK KCa channels" ; "small conductance KCa channels"
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Genes (FBgn)GO_MOLECULAR_FUNCTION
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 small conductance calcium-activated potassium channel activity (all annotations which use CV term, excluding "NOT" statements)
     enables | small conductance calcium-activated potassium channel activity       --
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calcium-activated cation channel activity__
potassium channel activity_________________|
                                           calcium-activated potassium channel activity
                                            |__small conductance calcium-activated potassium channel activity  2 rec.
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  • "SK calcium-activated potassium channel activity" EXACT
    "SK KCa channels" EXACT
    "small conductance KCa channels" EXACT
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