The PIK3IP1 protein binds to the catalytic subunit of phosphatidylinositol 3-kinase. It negatively regulates phosphatidylinositol 3-kinase activity and signaling. PIK3IP1 Protein, Mouse (HEK293, His) is the recombinant mouse-derived PIK3IP1 protein, expressed by HEK293 , with C-His labeled tag.