Glypican-5 (GPC5) protein is a cell surface proteoglycan characterized by specific binding to heparan sulfate. As a proteoglycan, GPC5 consists of a core protein covalently linked to heparan sulfate chains. Glypican-5/GPC5 Protein, Human (sf9, His) is the recombinant human-derived Glypican-5/GPC5 protein, expressed by Sf9 insect cells , with C-His labeled tag.