<prompt> The protein in the GBM responsible for charge dependent filtration isAlbuminCollagen type IVFibronectinProteoglycan  <response>: Glomerular basement membrane contains: a. Collagen type IV b. Laminin c. Polyanionic proteoglycans responsible of charge-dependent filtration d. Entactin e. Fibronectin f. Sialoglycoprotein coating on endothelial and visceral epithelial cells. Ref: ROBBINS BASIC PATHOLOGY 10th ed Pg no: 551 