Gap Junctions are intercellular channels formed by members of the connexin family, primarily composed of various connexins and connexon subunits. These channels, located on cell membranes, allow adjacent cells to exchange small molecules and signals through direct intercellular contact, serving as key structures for cellular communication. Gap Junctions are involved in various biological processes such as cell growth control, differentiation, and tissue synchronization. Their expression is tissue-specific, and mutations often result in diseases such as cardiac conditions, skin disorders, and neurological diseases.