Cx34, also known as Connexin 34, is a type of protein that forms gap junctions between cells. These gap junctions allow for direct communication and the transfer of small molecules and ions, which is essential for various physiological processes in the body. Cx34 is particularly important in the functioning of the nervous system and cardiovascular system. This protein is part of a larger family called connexins, which includes several other types that serve similar functions. Mutations or dysfunctions in Cx34 can lead to various health issues, highlighting its significance in maintaining cellular communication and overall tissue health.