2nov

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[[Image:2nov.png|left|200px]]
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==Breakage-reunion domain of S.pneumoniae topo IV: crystal structure of a gram-positive quinolone target==
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<StructureSection load='2nov' size='340' side='right' caption='[[2nov]], [[Resolution|resolution]] 2.67&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[2nov]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Streptococcus_pneumoniae Streptococcus pneumoniae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2NOV OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2NOV FirstGlance]. <br>
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</td></tr><tr><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">parC ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=1313 Streptococcus pneumoniae])</td></tr>
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<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=2nov FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2nov OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2nov RCSB], [http://www.ebi.ac.uk/pdbsum/2nov PDBsum]</span></td></tr>
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<table>
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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/no/2nov_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/chain_selection.php?pdb_ID=2ata ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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The 2.7 A crystal structure of the 55-kDa N-terminal breakage-reunion domain of topoisomerase (topo) IV subunit A (ParC) from Streptococcus pneumoniae, the first for the quinolone targets from a gram-positive bacterium, has been solved and reveals a 'closed' dimer similar in fold to Escherichia coli DNA gyrase subunit A (GyrA), but distinct from the 'open' gate structure of Escherichia coli ParC. Unlike GyrA whose DNA binding groove is largely positively charged, the DNA binding site of ParC exhibits a distinct pattern of alternating positively and negatively charged regions coincident with the predicted positions of the grooves and phosphate backbone of DNA. Based on the ParC structure, a new induced-fit model for sequence-specific recognition of the gate (G) segment by ParC has been proposed. These features may account for the unique DNA recognition and quinolone targeting properties of pneumococcal type II topoisomerases compared to their gram-negative counterparts.
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{{STRUCTURE_2nov| PDB=2nov | SCENE= }}
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Breakage-reunion domain of Streptococcus pneumoniae topoisomerase IV: crystal structure of a gram-positive quinolone target.,Laponogov I, Veselkov DA, Sohi MK, Pan XS, Achari A, Yang C, Ferrara JD, Fisher LM, Sanderson MR PLoS ONE. 2007 Mar 21;2(3):e301. PMID:17375187<ref>PMID:17375187</ref>
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===Breakage-reunion domain of S.pneumoniae topo IV: crystal structure of a gram-positive quinolone target===
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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{{ABSTRACT_PUBMED_17375187}}
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==About this Structure==
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[[2nov]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Streptococcus_pneumoniae Streptococcus pneumoniae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2NOV OCA].
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==See Also==
==See Also==
*[[Topoisomerase|Topoisomerase]]
*[[Topoisomerase|Topoisomerase]]
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== References ==
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==Reference==
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<references/>
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<ref group="xtra">PMID:017375187</ref><references group="xtra"/>
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__TOC__
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</StructureSection>
[[Category: Streptococcus pneumoniae]]
[[Category: Streptococcus pneumoniae]]
[[Category: Achari, A.]]
[[Category: Achari, A.]]

Revision as of 09:43, 29 September 2014

Breakage-reunion domain of S.pneumoniae topo IV: crystal structure of a gram-positive quinolone target

2nov, resolution 2.67Å

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