1jum: Difference between revisions
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[[Image: | ==Crystal structure of the multidrug binding transcriptional repressor QacR bound to the natural drug berberine== | ||
<StructureSection load='1jum' size='340' side='right' caption='[[1jum]], [[Resolution|resolution]] 2.98Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[1jum]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Staphylococcus_aureus Staphylococcus aureus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JUM OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1JUM FirstGlance]. <br> | |||
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BER:BERBERINE'>BER</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene><br> | |||
<tr><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1jt0|1jt0]], [[1jt6|1jt6]], [[1jtx|1jtx]], [[1jty|1jty]], [[1jup|1jup]], [[1jus|1jus]]</td></tr> | |||
<tr><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1jum FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1jum OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1jum RCSB], [http://www.ebi.ac.uk/pdbsum/1jum PDBsum]</span></td></tr> | |||
<table> | |||
== Evolutionary Conservation == | |||
[[Image:Consurf_key_small.gif|200px|right]] | |||
Check<jmol> | |||
<jmolCheckbox> | |||
<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ju/1jum_consurf.spt"</scriptWhenChecked> | |||
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked> | |||
<text>to colour the structure by Evolutionary Conservation</text> | |||
</jmolCheckbox> | |||
</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/chain_selection.php?pdb_ID=2ata ConSurf]. | |||
<div style="clear:both"></div> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The Staphylococcus aureus multidrug binding protein QacR represses transcription of the qacA multidrug transporter gene and is induced by structurally diverse cationic lipophilic drugs. Here, we report the crystal structures of six QacR-drug complexes. Compared to the DNA bound structure, drug binding elicits a coil-to-helix transition that causes induction and creates an expansive multidrug-binding pocket, containing four glutamates and multiple aromatic and polar residues. These structures indicate the presence of separate but linked drug-binding sites within a single protein. This multisite drug-binding mechanism is consonant with studies on multidrug resistance transporters. | |||
Structural mechanisms of QacR induction and multidrug recognition.,Schumacher MA, Miller MC, Grkovic S, Brown MH, Skurray RA, Brennan RG Science. 2001 Dec 7;294(5549):2158-63. PMID:11739955<ref>PMID:11739955</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
== | |||
< | |||
[[Category: Staphylococcus aureus]] | [[Category: Staphylococcus aureus]] | ||
[[Category: Brennan, R G.]] | [[Category: Brennan, R G.]] | ||
Revision as of 13:04, 28 September 2014
Crystal structure of the multidrug binding transcriptional repressor QacR bound to the natural drug berberineCrystal structure of the multidrug binding transcriptional repressor QacR bound to the natural drug berberine
Structural highlights
Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedThe Staphylococcus aureus multidrug binding protein QacR represses transcription of the qacA multidrug transporter gene and is induced by structurally diverse cationic lipophilic drugs. Here, we report the crystal structures of six QacR-drug complexes. Compared to the DNA bound structure, drug binding elicits a coil-to-helix transition that causes induction and creates an expansive multidrug-binding pocket, containing four glutamates and multiple aromatic and polar residues. These structures indicate the presence of separate but linked drug-binding sites within a single protein. This multisite drug-binding mechanism is consonant with studies on multidrug resistance transporters. Structural mechanisms of QacR induction and multidrug recognition.,Schumacher MA, Miller MC, Grkovic S, Brown MH, Skurray RA, Brennan RG Science. 2001 Dec 7;294(5549):2158-63. PMID:11739955[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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