3HPI:
reference: Studies of the maltose transport system reveal a mechanism for coupling ATP hydrolysis to substrate translocation without direct recognition of substrate., Gould AD, Shilton BH, J Biol Chem. 2010 Apr 9;285(15):11290-6. Epub 2010 Feb 10. PMID: 20147285

This OCA Structure page
uses Jmol, developed by the Jmol Development Team (documentation).