The CXCR4 receptor is a G-protein-coupled receptor that belongs to the chemokine receptor family. It is encoded by the CXCR4 gene and is expressed in many cell types, including immune cells, stem cells, and various tumor cells. The primary function of CXCR4 is to mediate the effects of its ligand CXCL12, which is involved in processes such as cell migration, proliferation, and survival.
