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2xgd

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==CRYSTAL STRUCTURE OF A DESIGNED HOMODIMERIC VARIANT T-A(L)A(L) OF THE TETRACYCLINE REPRESSOR==
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<StructureSection load='2xgd' size='340' side='right' caption='[[2xgd]], [[Resolution|resolution]] 2.25&Aring;' scene=''>
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==Crystal structure of a designed homodimeric variant T-A(L)A(L) of the tetracycline repressor==
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<StructureSection load='2xgd' size='340' side='right'caption='[[2xgd]], [[Resolution|resolution]] 2.25&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[2xgd]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2XGD OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2XGD FirstGlance]. <br>
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<table><tr><td colspan='2'>[[2xgd]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2XGD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2XGD FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CL:CHLORIDE+ION'>CL</scene></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]] 2.25&#8491;</td></tr>
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<tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1a6i|1a6i]], [[2x6o|2x6o]], [[1qpi|1qpi]], [[1bjz|1bjz]], [[2x9d|2x9d]], [[2vke|2vke]], [[1du7|1du7]], [[2trt|2trt]], [[2vkv|2vkv]], [[2xb5|2xb5]], [[1ork|1ork]], [[1bj0|1bj0]], [[1bjy|1bjy]], [[2tct|2tct]], [[2xgc|2xgc]], [[2xge|2xge]]</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=CL:CHLORIDE+ION'>CL</scene></td></tr>
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<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=2xgd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2xgd OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2xgd RCSB], [http://www.ebi.ac.uk/pdbsum/2xgd PDBsum]</span></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=2xgd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2xgd OCA], [https://pdbe.org/2xgd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2xgd RCSB], [https://www.ebi.ac.uk/pdbsum/2xgd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2xgd ProSAT]</span></td></tr>
</table>
</table>
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== Function ==
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[https://www.uniprot.org/uniprot/TETR4_ECOLX TETR4_ECOLX] TetR is the repressor of the tetracycline resistance element; its N-terminal region forms a helix-turn-helix structure and binds DNA. Binding of tetracycline to TetR reduces the repressor affinity for the tetracycline resistance gene (tetA) promoter operator sites.[https://www.uniprot.org/uniprot/TETR2_ECOLX TETR2_ECOLX] TetR is the repressor of the tetracycline resistance element; its N-terminal region forms a helix-turn-helix structure and binds DNA. Binding of tetracycline to TetR reduces the repressor affinity for the tetracycline resistance gene (tetA) promoter operator sites.
== Evolutionary Conservation ==
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
Check<jmol>
<jmolCheckbox>
<jmolCheckbox>
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<scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/xg/2xgd_consurf.spt"</scriptWhenChecked>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/xg/2xgd_consurf.spt"</scriptWhenChecked>
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
<text>to colour the structure by Evolutionary Conservation</text>
<text>to colour the structure by Evolutionary Conservation</text>
</jmolCheckbox>
</jmolCheckbox>
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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/chain_selection.php?pdb_ID=2ata ConSurf].
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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=2xgd ConSurf].
<div style="clear:both"></div>
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
</div>
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<div class="pdbe-citations 2xgd" style="background-color:#fffaf0;"></div>
==See Also==
==See Also==
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*[[Tetracycline repressor protein|Tetracycline repressor protein]]
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*[[Tetracycline repressor protein 3D structures|Tetracycline repressor protein 3D structures]]
== References ==
== References ==
<references/>
<references/>
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</StructureSection>
</StructureSection>
[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
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[[Category: Muller, Y A.]]
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[[Category: Large Structures]]
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[[Category: Richter, J P.]]
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[[Category: Muller YA]]
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[[Category: Stiebritz, M T.]]
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[[Category: Richter JP]]
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[[Category: Wengrzik, S.]]
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[[Category: Stiebritz MT]]
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[[Category: Antibiotic resistance]]
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[[Category: Wengrzik S]]
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[[Category: Chimera]]
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[[Category: Transcription]]
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[[Category: Transcription regulation]]
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Current revision

Crystal structure of a designed homodimeric variant T-A(L)A(L) of the tetracycline repressor

PDB ID 2xgd

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