2csd

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[[Image:2csd.gif|left|200px]]
 
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==Crystal structure of Topoisomerase V (61 kDa fragment)==
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The line below this paragraph, containing "STRUCTURE_2csd", creates the "Structure Box" on the page.
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<StructureSection load='2csd' size='340' side='right'caption='[[2csd]], [[Resolution|resolution]] 2.90&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'>[[2csd]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Methanopyrus_kandleri Methanopyrus kandleri]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CSD OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2CSD FirstGlance]. <br>
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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]] 2.9&#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=2csd FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2csd OCA], [https://pdbe.org/2csd PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2csd RCSB], [https://www.ebi.ac.uk/pdbsum/2csd PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2csd ProSAT]</span></td></tr>
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{{STRUCTURE_2csd| PDB=2csd | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/Q977W1_9EURY Q977W1_9EURY]
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Topoisomerases are involved in controlling and maintaining the topology of DNA and are present in all kingdoms of life. Unlike all other types of topoisomerases, similar type IB enzymes have only been identified in bacteria and eukarya. The only putative type IB topoisomerase in archaea is represented by Methanopyrus kandleri topoisomerase V. Despite several common functional characteristics, topoisomerase V shows no sequence similarity to other members of the same type. The structure of the 61 kDa N-terminal fragment of topoisomerase V reveals no structural similarity to other topoisomerases. Furthermore, the structure of the active site region is different, suggesting no conservation in the cleavage and religation mechanism. Additionally, the active site is buried, indicating the need of a conformational change for activity. The presence of a topoisomerase in archaea with a unique structure suggests the evolution of a separate mechanism to alter DNA.
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'''Crystal structure of Topoisomerase V (61 kDa fragment)'''
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Structure of the N-terminal fragment of topoisomerase V reveals a new family of topoisomerases.,Taneja B, Patel A, Slesarev A, Mondragon A EMBO J. 2006 Jan 25;25(2):398-408. Epub 2006 Jan 5. PMID:16395333<ref>PMID:16395333</ref>
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==Overview==
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Topoisomerases are involved in controlling and maintaining the topology of DNA and are present in all kingdoms of life. Unlike all other types of topoisomerases, similar type IB enzymes have only been identified in bacteria and eukarya. The only putative type IB topoisomerase in archaea is represented by Methanopyrus kandleri topoisomerase V. Despite several common functional characteristics, topoisomerase V shows no sequence similarity to other members of the same type. The structure of the 61 kDa N-terminal fragment of topoisomerase V reveals no structural similarity to other topoisomerases. Furthermore, the structure of the active site region is different, suggesting no conservation in the cleavage and religation mechanism. Additionally, the active site is buried, indicating the need of a conformational change for activity. The presence of a topoisomerase in archaea with a unique structure suggests the evolution of a separate mechanism to alter DNA.
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==About this Structure==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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2CSD is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Methanopyrus_kandleri Methanopyrus kandleri]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2CSD OCA].
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</div>
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<div class="pdbe-citations 2csd" style="background-color:#fffaf0;"></div>
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==Reference==
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==See Also==
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Structure of the N-terminal fragment of topoisomerase V reveals a new family of topoisomerases., Taneja B, Patel A, Slesarev A, Mondragon A, EMBO J. 2006 Jan 25;25(2):398-408. Epub 2006 Jan 5. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16395333 16395333]
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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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</StructureSection>
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[[Category: Large Structures]]
[[Category: Methanopyrus kandleri]]
[[Category: Methanopyrus kandleri]]
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[[Category: Single protein]]
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[[Category: Mondragon A]]
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[[Category: Mondragon, A.]]
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[[Category: Patel A]]
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[[Category: Patel, A.]]
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[[Category: Slesarev A]]
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[[Category: Slesarev, A.]]
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[[Category: Taneja B]]
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[[Category: Taneja, B.]]
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[[Category: Helix-hairpin-helix]]
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[[Category: Helix-turn-helix]]
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[[Category: Hhh motif]]
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[[Category: Three helix bundle]]
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[[Category: Topoisomerase ib]]
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[[Category: Topoisomerase v]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May 3 22:56:33 2008''
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Current revision

Crystal structure of Topoisomerase V (61 kDa fragment)

PDB ID 2csd

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