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==Structural Basis of Multiple Drug Binding Capacity of the AcrB Multidrug Efflux Pump==
==Structural Basis of Multiple Drug Binding Capacity of the AcrB Multidrug Efflux Pump==
<StructureSection load='1oy8' size='340' side='right' caption='[[1oy8]], [[Resolution|resolution]] 3.63&Aring;' scene=''>
<StructureSection load='1oy8' size='340' side='right'caption='[[1oy8]], [[Resolution|resolution]] 3.63&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[1oy8]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/"bacillus_coli"_migula_1895 "bacillus coli" migula 1895]. The November 2007 RCSB PDB [http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Multidrug Resistance Transporters''  by David S. Goodsell is [http://dx.doi.org/10.2210/rcsb_pdb/mom_2007_11 10.2210/rcsb_pdb/mom_2007_11]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OY8 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1OY8 FirstGlance]. <br>
<table><tr><td colspan='2'>[[1oy8]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. The November 2007 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Multidrug Resistance Transporters''  by David S. Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2007_11 10.2210/rcsb_pdb/mom_2007_11]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1OY8 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1OY8 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=RHQ:RHODAMINE+6G'>RHQ</scene></td></tr>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.63&#8491;</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">ACRB OR ACRE OR B0462 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=562 "Bacillus coli" Migula 1895])</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=RHQ:RHODAMINE+6G'>RHQ</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1oy8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1oy8 OCA], [http://pdbe.org/1oy8 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1oy8 RCSB], [http://www.ebi.ac.uk/pdbsum/1oy8 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=1oy8 ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1oy8 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1oy8 OCA], [https://pdbe.org/1oy8 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1oy8 RCSB], [https://www.ebi.ac.uk/pdbsum/1oy8 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1oy8 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/ACRB_ECOLI ACRB_ECOLI]] AcrAB is a drug efflux protein with a broad substrate specificity.<ref>PMID:16915237</ref> <ref>PMID:16946072</ref> <ref>PMID:17194213</ref>
[https://www.uniprot.org/uniprot/ACRB_ECOLI ACRB_ECOLI] AcrAB is a drug efflux protein with a broad substrate specificity.<ref>PMID:16915237</ref> <ref>PMID:16946072</ref> <ref>PMID:17194213</ref>  
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
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</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1oy8 ConSurf].
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1oy8 ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== 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<ref>PMID:12738864</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 1oy8" style="background-color:#fffaf0;"></div>
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Bacillus coli migula 1895]]
[[Category: Escherichia coli]]
[[Category: Large Structures]]
[[Category: Multidrug Resistance Transporters]]
[[Category: Multidrug Resistance Transporters]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: RCSB PDB Molecule of the Month]]
[[Category: Koshland, D E]]
[[Category: Koshland Jr DE]]
[[Category: McDermott, G]]
[[Category: McDermott G]]
[[Category: Nikaido, H]]
[[Category: Nikaido H]]
[[Category: Yu, E W]]
[[Category: Yu EW]]
[[Category: Zgurskaya, H I]]
[[Category: Zgurskaya HI]]
[[Category: Membrane protein]]

Latest revision as of 11:03, 14 February 2024

Structural Basis of Multiple Drug Binding Capacity of the AcrB Multidrug Efflux PumpStructural Basis of Multiple Drug Binding Capacity of the AcrB Multidrug Efflux Pump

Structural highlights

1oy8 is a 1 chain structure with sequence from Escherichia coli. The November 2007 RCSB PDB Molecule of the Month feature on Multidrug Resistance Transporters by David S. Goodsell is 10.2210/rcsb_pdb/mom_2007_11. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:X-ray diffraction, Resolution 3.63Å
Ligands:
Resources:FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

ACRB_ECOLI AcrAB is a drug efflux protein with a broad substrate specificity.[1] [2] [3]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

References

  1. ↑ Murakami S, Nakashima R, Yamashita E, Matsumoto T, Yamaguchi A. Crystal structures of a multidrug transporter reveal a functionally rotating mechanism. Nature. 2006 Sep 14;443(7108):173-9. Epub 2006 Aug 16. PMID:16915237 doi:10.1038/nature05076
  2. ↑ Seeger MA, Schiefner A, Eicher T, Verrey F, Diederichs K, Pos KM. Structural asymmetry of AcrB trimer suggests a peristaltic pump mechanism. Science. 2006 Sep 1;313(5791):1295-8. PMID:16946072 doi:313/5791/1295
  3. ↑ Sennhauser G, Amstutz P, Briand C, Storchenegger O, Grutter MG. Drug export pathway of multidrug exporter AcrB revealed by DARPin inhibitors. PLoS Biol. 2007 Jan;5(1):e7. PMID:17194213 doi:10.1371/journal.pbio.0050007

1oy8, resolution 3.63Å

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