FUNCTION: Hyperpolarization-activated potassium channel. May also facilitate the permeation of sodium ions. {ECO:0000269|PubMed:16043489}....
                        FUNCTION: Hyperpolarization-activated potassium channel. May also facilitate the permeation of sodium ions. {ECO:0000269|PubMed:16043489}.
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                        GO - Biological processes (BP): 
                        cellular response to cAMP [GO:0071320]; cellular response to dopamine [GO:1903351]; potassium ion transmembrane transport [GO:0071805]; regulation of cation channel activity [GO:2001257]; regulation of heart rate by cardiac conduction [GO:0086091]; regulation of membrane depolarization [GO:0003254];...
                        cellular response to cAMP [GO:0071320]; cellular response to dopamine [GO:1903351]; potassium ion transmembrane transport [GO:0071805]; regulation of cation channel activity [GO:2001257]; regulation of heart rate by cardiac conduction [GO:0086091]; regulation of membrane depolarization [GO:0003254]; regulation of membrane potential [GO:0042391]; regulation of SA node cell action potential [GO:0098907]; response to cisplatin [GO:0072718]; sodium ion transmembrane transport [GO:0035725]
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                        GO - Molecular function (MF): 
                        cAMP binding [GO:0030552]; voltage-gated potassium channel activity [GO:0005249]; voltage-gated sodium channel activity [GO:0005248]...
                        cAMP binding [GO:0030552]; voltage-gated potassium channel activity [GO:0005249]; voltage-gated sodium channel activity [GO:0005248]
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                        GO - Cellular component (CC): 
                        cone cell pedicle [GO:0044316]; dendrite [GO:0030425]; integral component of plasma membrane [GO:0005887]; neuronal cell body [GO:0043025]; plasma membrane [GO:0005886]...
                        cone cell pedicle [GO:0044316]; dendrite [GO:0030425]; integral component of plasma membrane [GO:0005887]; neuronal cell body [GO:0043025]; plasma membrane [GO:0005886]
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