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| | <SX load='3j2u' size='340' side='right' viewer='molstar' caption='[[3j2u]], [[Resolution|resolution]] 10.80Å' scene=''> | | <SX load='3j2u' size='340' side='right' viewer='molstar' caption='[[3j2u]], [[Resolution|resolution]] 10.80Å' scene=''> |
| | == Structural highlights == | | == Structural highlights == |
| - | <table><tr><td colspan='2'>[[3j2u]] is a 5 chain structure with sequence from [http://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [http://en.wikipedia.org/wiki/Drome Drome]. The July 2014 RCSB PDB [http://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Microtubules'' by David Goodsell is [http://dx.doi.org/10.2210/rcsb_pdb/mom_2014_7 10.2210/rcsb_pdb/mom_2014_7]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3J2U OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=3J2U FirstGlance]. <br> | + | <table><tr><td colspan='2'>[[3j2u]] is a 5 chain structure with sequence from [https://en.wikipedia.org/wiki/Bos_taurus Bos taurus] and [https://en.wikipedia.org/wiki/Drosophila_melanogaster Drosophila melanogaster]. The July 2014 RCSB PDB [https://pdb.rcsb.org/pdb/static.do?p=education_discussion/molecule_of_the_month/index.html Molecule of the Month] feature on ''Microtubules'' by David Goodsell is [https://dx.doi.org/10.2210/rcsb_pdb/mom_2014_7 10.2210/rcsb_pdb/mom_2014_7]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3J2U OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3J2U FirstGlance]. <br> |
| - | </td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">Klp10A, CG1453 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=7227 DROME])</td></tr> | + | </td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 10.8Å</td></tr> |
| - | <tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=3j2u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3j2u OCA], [http://pdbe.org/3j2u PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3j2u RCSB], [http://www.ebi.ac.uk/pdbsum/3j2u PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3j2u ProSAT]</span></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=3j2u FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3j2u OCA], [https://pdbe.org/3j2u PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3j2u RCSB], [https://www.ebi.ac.uk/pdbsum/3j2u PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3j2u ProSAT]</span></td></tr> |
| | </table> | | </table> |
| | == Function == | | == Function == |
| - | [[http://www.uniprot.org/uniprot/KI10A_DROME KI10A_DROME]] Required during anaphase to drive sister chromatid separation to promote flux by actively depolymerizing kinetochore microtubules at their pole-associated minus ends, thereby moving chromatids through a "poleward flux".<ref>PMID:14681690</ref> [[http://www.uniprot.org/uniprot/TBB2B_BOVIN TBB2B_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). [[http://www.uniprot.org/uniprot/TBA1B_BOVIN TBA1B_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. | + | [https://www.uniprot.org/uniprot/KI10A_DROME KI10A_DROME] Required during anaphase to drive sister chromatid separation to promote flux by actively depolymerizing kinetochore microtubules at their pole-associated minus ends, thereby moving chromatids through a "poleward flux".<ref>PMID:14681690</ref> |
| - | <div style="background-color:#fffaf0;">
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| - | == Publication Abstract from PubMed ==
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| - | To elucidate the structural basis of the mechanism of microtubule depolymerization by kinesin-13s, we analyzed complexes of tubulin and the Drosophila melanogaster kinesin-13 KLP10A by electron microscopy (EM) and fluorescence polarization microscopy. We report a nanometer-resolution (1.1 nm) cryo-EM three-dimensional structure of the KLP10A head domain (KLP10AHD) bound to curved tubulin. We found that binding of KLP10AHD induces a distinct tubulin configuration with displacement (shear) between tubulin subunits in addition to curvature. In this configuration, the kinesin-binding site differs from that in straight tubulin, providing an explanation for the distinct interaction modes of kinesin-13s with the microtubule lattice or its ends. The KLP10AHD-tubulin interface comprises three areas of interaction, suggesting a crossbow-type tubulin-bending mechanism. These areas include the kinesin-13 family conserved KVD residues, and as predicted from the crossbow model, mutating these residues changes the orientation and mobility of KLP10AHDs interacting with the microtubule.
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| - | Structural Model for Tubulin Recognition and Deformation by Kinesin-13 Microtubule Depolymerases.,Asenjo AB, Chatterjee C, Tan D, Depaoli V, Rice WJ, Diaz-Avalos R, Silvestry M, Sosa H Cell Rep. 2013 Feb 19. pii: S2211-1247(13)00054-5. doi:, 10.1016/j.celrep.2013.01.030. PMID:23434508<ref>PMID:23434508</ref>
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| - | From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
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| - | </div>
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| - | <div class="pdbe-citations 3j2u" style="background-color:#fffaf0;"></div>
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| | ==See Also== | | ==See Also== |
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| | </SX> | | </SX> |
| | [[Category: Bos taurus]] | | [[Category: Bos taurus]] |
| - | [[Category: Drome]] | + | [[Category: Drosophila melanogaster]] |
| | [[Category: Large Structures]] | | [[Category: Large Structures]] |
| | [[Category: Microtubules]] | | [[Category: Microtubules]] |
| | [[Category: RCSB PDB Molecule of the Month]] | | [[Category: RCSB PDB Molecule of the Month]] |
| - | [[Category: Asenjo, A B]] | + | [[Category: Asenjo AB]] |
| - | [[Category: Chatterjee, C]] | + | [[Category: Chatterjee C]] |
| - | [[Category: DePaoli, V]] | + | [[Category: DePaoli V]] |
| - | [[Category: Diaz-Avalos, R]] | + | [[Category: Diaz-Avalos R]] |
| - | [[Category: Rice, W J]] | + | [[Category: Rice WJ]] |
| - | [[Category: Silvestry, M]] | + | [[Category: Silvestry M]] |
| - | [[Category: Sosa, H]] | + | [[Category: Sosa H]] |
| - | [[Category: Tan, D]] | + | [[Category: Tan D]] |
| - | [[Category: Depolymerase]]
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| - | [[Category: Depolymerization]]
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| - | [[Category: Kinesin]]
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| - | [[Category: Kinesin-13]]
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| - | [[Category: Kinesin13]]
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| - | [[Category: Kini]]
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| - | [[Category: Microtubule]]
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| - | [[Category: Motor protein]]
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| - | [[Category: Tubulin]]
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