o have human homolog(s). KCNA5（potassium voltage-gated channel subfamily A member 5） encodes a member of the potassium channel, voltage-gated, shaker-related subfamily. This member contains six membrane-spanning domains with a shaker-type repeat in the fourth segment. It belongs to the delayed rectifier class, the function of which could restore the resting membrane potential of beta cells after depolarization and thereby contribute to the regulation of insulin secretion. KCNA5 is intronless, and the gene is clustered with genes KCNA1 and KCNA6 on chromosome 12. Defects in KCNA5 are a cause of familial atrial fibrillation type 7 (ATFB7).蛋白别名为：KCNA5; Potassium voltage-gated channel subfamily A member 5; HPCN1; Voltage-gated potassium channel HK2; Voltage-gated potassium channel subunit Kv1.5;基因ID为：3741；蛋白质ID:P22460
