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2trt

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[[Image:2trt.gif|left|200px]]
 
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==TETRACYCLINE REPRESSOR CLASS D==
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The line below this paragraph, containing "STRUCTURE_2trt", creates the "Structure Box" on the page.
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<StructureSection load='2trt' size='340' side='right'caption='[[2trt]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[2trt]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1trt 1trt]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2TRT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2TRT FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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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]] 2.5&#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=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=TAC:TETRACYCLINE'>TAC</scene></td></tr>
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{{STRUCTURE_2trt| PDB=2trt | SCENE= }}
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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=2trt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2trt OCA], [https://pdbe.org/2trt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2trt RCSB], [https://www.ebi.ac.uk/pdbsum/2trt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2trt ProSAT]</span></td></tr>
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</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.
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/tr/2trt_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</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/main_output.php?pdb_ID=2trt ConSurf].
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<div style="clear:both"></div>
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'''TETRACYCLINE REPRESSOR CLASS D'''
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==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]]
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==Overview==
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__TOC__
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The most frequently occurring resistance of Gram-negative bacteria against tetracyclines is triggered by drug recognition of the Tet repressor. This causes dissociation of the repressor-operator DNA complex and enables expression of the resistance protein TetA, which is responsible for active efflux of tetracycline. The 2.5 angstrom resolution crystal structure of the homodimeric Tet repressor complexed with tetracycline-magnesium reveals detailed drug recognition. The orientation of the operator-binding helix-turn-helix motifs of the repressor is inverted in comparison with other DNA binding proteins. The repressor-drug complex is unable to interact with DNA because the separation of the DNA binding motifs is 5 angstroms wider than usually observed.
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</StructureSection>
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==About this Structure==
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2TRT is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Escherichia_coli Escherichia coli]. This structure supersedes the now removed PDB entry [http://oca.weizmann.ac.il/oca-bin/send-pdb?obs=1&id=1trt 1trt]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2TRT OCA].
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==Reference==
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Structure of the Tet repressor-tetracycline complex and regulation of antibiotic resistance., Hinrichs W, Kisker C, Duvel M, Muller A, Tovar K, Hillen W, Saenger W, Science. 1994 Apr 15;264(5157):418-20. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/8153629 8153629]
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[[Category: Escherichia coli]]
[[Category: Escherichia coli]]
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[[Category: Single protein]]
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[[Category: Large Structures]]
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[[Category: Hinrichs, W.]]
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[[Category: Hinrichs W]]
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[[Category: Kisker, C.]]
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[[Category: Kisker C]]
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[[Category: Saenger, W.]]
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[[Category: Saenger W]]
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[[Category: Dna-binding]]
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[[Category: Repressor]]
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[[Category: Transcription regulation]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sun May 4 17:26:41 2008''
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Current revision

TETRACYCLINE REPRESSOR CLASS D

PDB ID 2trt

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