SNX5 also known as sorting nexin-5, is 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 is a component of the mammalian retromer complex, which facilitates cargo retrieval from endosomes to the trans-Golgi network. It has also been shown to bind to the Fanconi anemia, complementation group A protein. Recombinant human SNX5, fused to His-tag at N-terminus, was expressed in E.coli and purified by using conventional chromatography techniques.