373716490ENSG00000177301ENSMUSG00000040724P16389P63141NM_001204269NM_004974NM_008417NP_001191198NP_004965NP_032443Potassium voltage-gated channel subfamily A member 2 also known as Kv1.2 is a protein that in humans is encoded by the KCNA2 gene.

Their diverse functions include regulating neurotransmitter release, heart rate, insulin secretion, neuronal excitability, epithelial electrolyte transport, smooth muscle contraction, and cell volume.

Four sequence-related potassium channel genes - shaker, shaw, shab, and shal - have been identified in Drosophila, and each has been shown to have human homolog(s).

It belongs to the delayed rectifier class, members of which allow nerve cells to efficiently repolarize following an action potential.

[13] This article incorporates text from the United States National Library of Medicine, which is in the public domain.