| id | GO:0005267 Detailed information
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| name | potassium channel activity
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| namespace | molecular_function
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| def | "Catalysis of 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." [GOC:BHF, GOC:mtg_transport, ISBN:0815340729]
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| subset | gosubset_prok
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| is_a | GO:0005261 ! cation channel activity
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| is_a | GO:0015079 ! potassium ion transmembrane transporter activity
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| relationship | part_of GO:0071805 ! potassium ion transmembrane transport
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