Definition

One of a group of related genes called connexins. Connexin genes make proteins that form channels that connect cells that are next to each other. These channels allow substances (such as sodium and potassium) to move from one cell to another. This is important for cells to grow and work normally. Mutations in certain connexin genes may be found in some types of hearing, skin, and peripheral nervous system disorders. They may also be found in some types of cancer.