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1tvk

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(New page: 200px<br /><applet load="1tvk" size="450" color="white" frame="true" align="right" spinBox="true" caption="1tvk, resolution 2.89&Aring;" /> '''The binding mode of ...)
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[[Image:1tvk.gif|left|200px]]<br /><applet load="1tvk" size="450" color="white" frame="true" align="right" spinBox="true"
 
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caption="1tvk, resolution 2.89&Aring;" />
 
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'''The binding mode of epothilone A on a,b-tubulin by electron crystallography'''<br />
 
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==Overview==
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==The binding mode of epothilone A on a,b-tubulin by electron crystallography==
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The structure of epothilone A, bound to alpha,beta-tubulin in, zinc-stabilized sheets, was determined by a combination of electron, crystallography at 2.89 angstrom resolution and nuclear magnetic, resonance-based conformational analysis. The complex explains both the, broad-based epothilone structure-activity relationship and the known, mutational resistance profile. Comparison with Taxol shows that the, longstanding expectation of a common pharmacophore is not met, because, each ligand exploits the tubulin-binding pocket in a unique and, independent manner.
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<StructureSection load='1tvk' size='340' side='right'caption='[[1tvk]], [[Resolution|resolution]] 2.89&Aring;' scene=''>
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== Structural highlights ==
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<table><tr><td colspan='2'>[[1tvk]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1TVK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1TVK 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">Electron crystallography, [[Resolution|Resolution]] 2.89&#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=EP:EPOTHILONE+A'>EP</scene>, <scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</scene>, <scene name='pdbligand=GTP:GUANOSINE-5-TRIPHOSPHATE'>GTP</scene></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=1tvk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1tvk OCA], [https://pdbe.org/1tvk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1tvk RCSB], [https://www.ebi.ac.uk/pdbsum/1tvk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1tvk ProSAT]</span></td></tr>
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/TBA1D_BOVIN TBA1D_BOVIN] Tubulin is the major constituent of microtubules. It binds two moles of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha chain (By similarity).
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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/tv/1tvk_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=1tvk 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 structure of epothilone A, bound to alpha,beta-tubulin in zinc-stabilized sheets, was determined by a combination of electron crystallography at 2.89 angstrom resolution and nuclear magnetic resonance-based conformational analysis. The complex explains both the broad-based epothilone structure-activity relationship and the known mutational resistance profile. Comparison with Taxol shows that the longstanding expectation of a common pharmacophore is not met, because each ligand exploits the tubulin-binding pocket in a unique and independent manner.
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==About this Structure==
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The binding mode of epothilone A on alpha,beta-tubulin by electron crystallography.,Nettles JH, Li H, Cornett B, Krahn JM, Snyder JP, Downing KH Science. 2004 Aug 6;305(5685):866-9. PMID:15297674<ref>PMID:15297674</ref>
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1TVK is a [http://en.wikipedia.org/wiki/Protein_complex Protein complex] structure of sequences from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] with GDP, GTP and EP as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://ispc.weizmann.ac.il/oca-bin/ocashort?id=1TVK OCA].
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==Reference==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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The binding mode of epothilone A on alpha,beta-tubulin by electron crystallography., Nettles JH, Li H, Cornett B, Krahn JM, Snyder JP, Downing KH, Science. 2004 Aug 6;305(5685):866-9. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=15297674 15297674]
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</div>
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[[Category: Bos taurus]]
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<div class="pdbe-citations 1tvk" style="background-color:#fffaf0;"></div>
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[[Category: Protein complex]]
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[[Category: Cornett, B.]]
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[[Category: Downing, K.H.]]
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[[Category: Krahn, J.M.]]
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[[Category: Li, H.]]
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[[Category: Nettles, J.H.]]
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[[Category: Snyder, J.P.]]
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[[Category: EP]]
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[[Category: GDP]]
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[[Category: GTP]]
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[[Category: epothilone; taxol; ligand interactions]]
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''Page seeded by [http://ispc.weizmann.ac.il/oca OCA ] on Wed Nov 21 03:37:43 2007''
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==See Also==
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*[[Tubulin 3D Structures|Tubulin 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: Bos taurus]]
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[[Category: Large Structures]]
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[[Category: Cornett B]]
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[[Category: Downing KH]]
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[[Category: Krahn JM]]
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[[Category: Li H]]
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[[Category: Nettles JH]]
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[[Category: Snyder JP]]

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The binding mode of epothilone A on a,b-tubulin by electron crystallography

PDB ID 1tvk

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