Potassium/sodium hyperpolarization-activated cyclic nucleotide-gated channel 2

UniProtKB accession:  O88703

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UniProtKB description:  Hyperpolarization-activated ion channel exhibiting weak selectivity for potassium over sodium ions. Contributes to the native pacemaker currents in heart (If) and in neurons (Ih) (PubMed:10962006, PubMed:11096117, PubMed:11459060, PubMed:11741901, PubMed:12034718, PubMed:12193608, PubMed:12968185, PubMed:17562314, PubMed:21347269, PubMed:21903816, PubMed:23103389). Can also transport ammonium in the distal nephron (By similarity). Involved in the initiation of neuropathic pain in sensory neurons (PubMed:21903816).