This old version of Proteopedia is provided for student assignments while the new version is undergoing repairs. Content and edits done in this old version of Proteopedia after March 1, 2026 will eventually be lost when it is retired in about June of 2026.
Apply for new accounts at the new Proteopedia. Your logins will work in both the old and new versions.
1oy9
From Proteopedia
Revision as of 21:43, 28 September 2014 by OCA (Talk | contribs)
1oy9 is a 1 chain structure with sequence from Escherichia coli. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.
Publication Abstract from PubMed
Multidrug efflux pumps cause serious problems in cancer chemotherapy and treatment of bacterial infections. Yet high-resolution structures of ligand transporter complexes have previously been unavailable. We obtained x-ray crystallographic structures of the trimeric AcrB pump from Escherichia coli with four structurally diverse ligands. The structures show that three molecules of ligands bind simultaneously to the extremely large central cavity of 5000 cubic angstroms, primarily by hydrophobic, aromatic stacking and van der Waals interactions. Each ligand uses a slightly different subset of AcrB residues for binding. The bound ligand molecules often interact with each other, stabilizing the binding.
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[1]
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.
References
↑ Yu EW, McDermott G, Zgurskaya HI, Nikaido H, Koshland DE Jr. Structural basis of multiple drug-binding capacity of the AcrB multidrug efflux pump. Science. 2003 May 9;300(5621):976-80. PMID:12738864 doi:10.1126/science.1083137
