View source for 6tde


==Tubulin-inhibitor complex==
<StructureSection load='6tde' size='340' side='right'caption='[[6tde]], [[Resolution|resolution]] 2.29&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6tde]] is a 5 chain structure with sequence from [https://en.wikipedia.org/wiki/Ovis_aries Ovis aries] and [https://en.wikipedia.org/wiki/Rattus_norvegicus Rattus norvegicus]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6TDE OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6TDE FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.286&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ACE:ACETYL+GROUP'>ACE</scene>, <scene name='pdbligand=GDP:GUANOSINE-5-DIPHOSPHATE'>GDP</scene>, <scene name='pdbligand=GTP:GUANOSINE-5-TRIPHOSPHATE'>GTP</scene>, <scene name='pdbligand=MG:MAGNESIUM+ION'>MG</scene>, <scene name='pdbligand=N3Z:~{N}-[(10~{S})-3,4,5-trimethoxy-16-methylidene-14-oxatetracyclo[9.7.0.0^{2,7}.0^{13,17}]octadeca-1(18),2,4,6,11,13(17)-hexaen-10-yl]ethanamide'>N3Z</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=6tde FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6tde OCA], [https://pdbe.org/6tde PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6tde RCSB], [https://www.ebi.ac.uk/pdbsum/6tde PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6tde ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/D0VWZ0_SHEEP D0VWZ0_SHEEP] 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).[RuleBase:RU003505][SAAS:SAAS023123_004_019801]
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Two series of heterocyclic colchicinoids bearing beta-methylenedihydrofuran or 2H-pyran-2-one fragments were synthesized by the intramolecular Heck reaction. Methylenedihydrofuran compounds 9a and 9h were found to be the most cytotoxic among currently known colchicinoids, exhibiting outstanding antiproliferative activity on tumor cell lines in picomolar (0.01-2.1 nM) range of concentrations. Compound 9a potently and substoichiometrically inhibits microtubule formation in vitro, being an order of magnitude more active in this assay than colchicine. Derivatives 9a and 9h revealed relatively low acute toxicity in mice (LD(50) &gt;/= 10 mg/kg i.v.). The X-Ray structure of colchicinoid 9a bound to tubulin confirmed interaction of this compound with the colchicine binding site of tubulin.

Discovery of dihydrofuranoallocolchicinoids - Highly potent antimitotic agents with low acute toxicity.,Shchegravina ES, Svirshchevskaya EV, Combes S, Allegro D, Barbier P, Gigant B, Varela PF, Gavryushin AE, Kobanova DA, Shchekotikhin AE, Fedorov AY Eur J Med Chem. 2020 Dec 1;207:112724. doi: 10.1016/j.ejmech.2020.112724. Epub , 2020 Aug 13. PMID:32827941<ref>PMID:32827941</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 6tde" style="background-color:#fffaf0;"></div>

==See Also==
*[[Stathmin-4 3D structures|Stathmin-4 3D structures]]
*[[Tubulin 3D Structures|Tubulin 3D Structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Large Structures]]
[[Category: Ovis aries]]
[[Category: Rattus norvegicus]]
[[Category: Gigant B]]
[[Category: Varela PF]]