Fig. 7From: Variations in periplasmic loop interactions determine the pH-dependent activity of the hexameric urea transporter UreI from Helicobacter pylori: a molecular dynamics studySchematic representation of the pH-dependent conformations. Cartoon representation of one protomer of the hexameric hpUreI complex at each pH condition. Periplasmatic loops are colored in red to better discriminate conformational changes, and how the structural changes might affect urea transportBack to article page