1OY6:
reference: Structural basis of multiple drug-binding capacity of the AcrB multidrug efflux pump., Yu EW, McDermott G, Zgurskaya HI, Nikaido H, Koshland DE Jr, Science 2003 May 9;300(5621):976-80. PMID: 12738864

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