Kv12.3 (also known as elk3 and KCNH4) is a voltage-gated K+ channel that belongs to the ether-a-go-go (EAG) family. The EAG family of voltage-gated K+ channels can be subdivided into three distinct groups based on sequence homology. These are the eag (Kv10) with two members, the eag-related channels (erg or Kv11) and the eag-like K+ channels (elk or Kv12) with three members each.
