Also known as John Wayne Airport, SNA is the only commercial service airport in Orange County, California. It is about 35 miles south of Los Angeles, between the cities of Costa Mesa, Irvine, and Newport Beach, and is 14 miles from Disneyland.
potassium channel a voltage-gated protein channel selective for the passage of potassium ions. protein channel a watery pathway through the interstices of a protein molecule by which ions and small molecules can cross a membrane into or out of a cell by diffusion.
The specific function of a potassium channel depends on its protein components and its location in the body. The KCNE2 protein regulates several ion channels, including a channel made up of proteins produced by the KCNH2 gene.Channels made with the KCNH2 protein are present in heart (cardiac) muscle, where they transport potassium ions out of cells.he KCNE2 gene belongs to a family of genes called KCN (potassium channels). A gene family is a group of genes that share important characteristics.