This gene encodes a member of the connexin gene family. The encoded protein is a component of gap junctions, which are composed of arrays of intercellular channels that provide a route for the diffusion of low molecular weight materials from cell to cell. Mutations in this gene have been associated with atherosclerosis and a higher risk of myocardial infarction.,GJA4,CX37,Signal Transduction,Cell Biology & Developmental Biology,Cell Adhesion,Gap Junctions,Cytoskeleton,Immunology & Inflammation,Cardiovascular,GJA4