Connexin 31 is a protein that forms channels in cell membranes, allowing communication between adjacent cells. It is part of a family of proteins known as connexins, which play a crucial role in maintaining tissue homeostasis and facilitating the exchange of ions and small molecules. Mutations in the Connexin 31 gene can lead to various health issues, including skin disorders and hearing loss. This protein is particularly important in the skin and inner ear, where it helps regulate cellular functions and maintain the integrity of these tissues.