Tags: Protein.
Sorting nexin-4 is a protein that in humans is encoded by the SNX4 gene.This gene encodes a member of the sorting nexin family. Members of this family contain a phox (PX) domain which is a phosphoinositide binding domain and are involved in intracellular trafficking. This protein associated with the long isoform of the leptin receptor and with receptor tyrosine kinases for platelet-derived growth factor insulin and epidermal growth factor in cell cultures but its function is unknown.