1d6m

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{{Seed}}
 
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[[Image:1d6m.png|left|200px]]
 
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==CRYSTAL STRUCTURE OF E. COLI DNA TOPOISOMERASE III==
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The line below this paragraph, containing "STRUCTURE_1d6m", creates the "Structure Box" on the page.
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<StructureSection load='1d6m' size='340' side='right'caption='[[1d6m]], [[Resolution|resolution]] 3.00&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'>[[1d6m]] 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=1D6M OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1D6M 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]] 3&#8491;</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=1d6m FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1d6m OCA], [https://pdbe.org/1d6m PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1d6m RCSB], [https://www.ebi.ac.uk/pdbsum/1d6m PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1d6m ProSAT]</span></td></tr>
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{{STRUCTURE_1d6m| PDB=1d6m | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/TOP3_ECOLI TOP3_ECOLI] Releases the supercoiling and torsional tension of DNA introduced during the DNA replication and transcription by transiently cleaving and rejoining one strand of the DNA duplex. Introduces a single-strand break via transesterification at a target site in duplex DNA. The scissile phosphodiester is attacked by the catalytic tyrosine of the enzyme, resulting in the formation of a DNA-(5'-phosphotyrosyl)-enzyme intermediate and the expulsion of a 3'-OH DNA strand. The free DNA strand than undergoes passage around the unbroken strand thus removing DNA supercoils. Finally, in the religation step, the DNA 3'-OH attacks the covalent intermediate to expel the active-site tyrosine and restore the DNA phosphodiester backbone. TOP3 is a potent decatenase.<ref>PMID:2553698</ref> <ref>PMID:6326814</ref>
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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/d6/1d6m_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=1d6m ConSurf].
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<div style="clear:both"></div>
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===CRYSTAL STRUCTURE OF E. COLI DNA TOPOISOMERASE III===
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==See Also==
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*[[Topoisomerase 3D structures|Topoisomerase 3D structures]]
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== References ==
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<references/>
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__TOC__
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(as it appears on PubMed at http://www.pubmed.gov), where 10574789 is the PubMed ID number.
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</StructureSection>
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{{ABSTRACT_PUBMED_10574789}}
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==About this Structure==
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1D6M is a [[Single protein]] structure of 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=1D6M OCA].
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==Reference==
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The structure of Escherichia coli DNA topoisomerase III., Mondragon A, DiGate R, Structure. 1999 Nov 15;7(11):1373-83. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/10574789 10574789]
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[[Category: DNA topoisomerase]]
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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: DiGate, R.]]
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[[Category: DiGate R]]
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[[Category: Mondragon, A.]]
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[[Category: Mondragon A]]
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[[Category: Decatenating enzyme]]
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[[Category: Dna topoisomerase]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jun 30 22:32:34 2008''
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Current revision

CRYSTAL STRUCTURE OF E. COLI DNA TOPOISOMERASE III

PDB ID 1d6m

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