Snx2 is a signaling protein belonging to the sorting nexin family and characterized by the presence of a 100aa region known as the phox (PX) homology domain (a phosphoinositide binding domain). As a transport carrier SNX2 is involved in several stages of intracellular trafficking of proteins and also in the EGFR signaling pathway. The retromer complex that is composed of VPS26 (VPS26A or VPS26B), VPS29, VPS35, SNX1 and SNX2, is required to retrieve lysosomal enzyme receptors (IGF2R and M6PR) from endosomes to the trans-Golgi network. Though Snx2 associates with formin-binding protein 17, its function is yet unknown. It may form oligomeric complexes with itself as well as with other family members Snx1, Snx1A, and Snx4, but not with Snx3 and is ubiquitously expressed in most tissues, including peripheral leukocytes.