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7akz

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==Deciphering the role of the channel constrictions in the opening mechanism of MexAB-OprM efflux pump from Pseudomonas aeruginosa==
==Deciphering the role of the channel constrictions in the opening mechanism of MexAB-OprM efflux pump from Pseudomonas aeruginosa==
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<StructureSection load='7akz' size='340' side='right'caption='[[7akz]]' scene=''>
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<StructureSection load='7akz' size='340' side='right'caption='[[7akz]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7AKZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7AKZ FirstGlance]. <br>
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<table><tr><td colspan='2'>[[7akz]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Pseudomonas_aeruginosa_PAO1 Pseudomonas aeruginosa PAO1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7AKZ OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7AKZ FirstGlance]. <br>
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</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=7akz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7akz OCA], [https://pdbe.org/7akz PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7akz RCSB], [https://www.ebi.ac.uk/pdbsum/7akz PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7akz ProSAT]</span></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.2&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BOG:B-OCTYLGLUCOSIDE'>BOG</scene>, <scene name='pdbligand=PLM:PALMITIC+ACID'>PLM</scene></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7akz FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7akz OCA], [https://pdbe.org/7akz PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7akz RCSB], [https://www.ebi.ac.uk/pdbsum/7akz PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7akz ProSAT]</span></td></tr>
</table>
</table>
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== Function ==
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[https://www.uniprot.org/uniprot/OPRM_PSEAE OPRM_PSEAE] The outer membrane component of the MexAB-OprM efflux system that confers multidrug resistance. Also functions as the major efflux pump for n-hexane and p-xylene efflux. Over-expression of the pump increases antibiotic and solvent efflux capacities. Can replace the OprJ outer membrane component of the MexCD-OprJ pump; the antibiotics exported are those exported by the intact MexCD pump, showing that efflux substrate specificity is not conferred by this component. Serves as the outer membrane component for the MexXY efflux system. Implicated in the secretion of the siderophore pyoverdine. OprM is probably involved in the efflux of the siderophore across the outer membrane.<ref>PMID:8226684</ref> <ref>PMID:8540696</ref> <ref>PMID:9401051</ref> <ref>PMID:9603892</ref> <ref>PMID:10952562</ref> The ability to export antibiotics and solvents is dramatically decreased in the presence of the proton conductor carbonyl cyanide m-chlorophenylhydrazone (CCCP), showing that an energized inner membrane is required for efflux. It is thought that the MexB subunit is a proton antiporter.<ref>PMID:8226684</ref> <ref>PMID:8540696</ref> <ref>PMID:9401051</ref> <ref>PMID:9603892</ref> <ref>PMID:10952562</ref>
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== References ==
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<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Large Structures]]
[[Category: Large Structures]]
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[[Category: Pseudomonas aeruginosa PAO1]]
[[Category: Broutin I]]
[[Category: Broutin I]]
[[Category: Garnier C]]
[[Category: Garnier C]]

Revision as of 12:11, 1 February 2024

Deciphering the role of the channel constrictions in the opening mechanism of MexAB-OprM efflux pump from Pseudomonas aeruginosa

PDB ID 7akz

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