View source for 6zpi


==Microtubule complexed with Kif15 motor domain. Symmetrised asymmetric unit==
<StructureSection load='6zpi' size='340' side='right'caption='[[6zpi]], [[Resolution|resolution]] 4.50&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[6zpi]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Sus_scrofa Sus scrofa]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6ZPI OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6ZPI FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 4.5&#8491;</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=ANP:PHOSPHOAMINOPHOSPHONIC+ACID-ADENYLATE+ESTER'>ANP</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=TA1:TAXOL'>TA1</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=6zpi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6zpi OCA], [https://pdbe.org/6zpi PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6zpi RCSB], [https://www.ebi.ac.uk/pdbsum/6zpi PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6zpi ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/KIF15_HUMAN KIF15_HUMAN] Plus-end directed kinesin-like motor enzyme involved in mitotic spindle assembly (By similarity).
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Subcellular compartmentalisation is necessary for eukaryotic cell function. Spatial and temporal regulation of kinesin activity is essential for building these local environments via control of intracellular cargo distribution. Kinesin-binding protein (KBP) interacts with a subset of kinesins via their motor domains, inhibits their microtubule (MT) attachment, and blocks their cellular function. However, its mechanisms of inhibition and selectivity have been unclear. Here we use cryo-electron microscopy to reveal the structure of KBP and of a KBP-kinesin motor domain complex. KBP is a tetratricopeptide repeat-containing, right-handed alpha-solenoid that sequesters the kinesin motor domain's tubulin-binding surface, structurally distorting the motor domain and sterically blocking its MT attachment. KBP uses its alpha-solenoid concave face and edge loops to bind the kinesin motor domain, and selected structure-guided mutations disrupt KBP inhibition of kinesin transport in cells. The KBP-interacting motor domain surface contains motifs exclusively conserved in KBP-interacting kinesins, suggesting a basis for kinesin selectivity.

The mechanism of kinesin inhibition by kinesin-binding protein.,Atherton J, Hummel JJ, Olieric N, Locke J, Pena A, Rosenfeld SS, Steinmetz MO, Hoogenraad CC, Moores CA Elife. 2020 Nov 30;9. pii: 61481. doi: 10.7554/eLife.61481. PMID:33252036<ref>PMID:33252036</ref>

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

==See Also==
*[[Kinesin 3D Structures|Kinesin 3D Structures]]
*[[Tubulin 3D Structures|Tubulin 3D Structures]]
== References ==
<references/>
__TOC__
</StructureSection>
[[Category: Homo sapiens]]
[[Category: Large Structures]]
[[Category: Sus scrofa]]
[[Category: Atherton J]]
[[Category: Hoogenraad CC]]
[[Category: Hummel JJA]]
[[Category: Locke J]]
[[Category: Moores CA]]
[[Category: Olieric N]]
[[Category: Pena A]]
[[Category: Rosenfeld SS]]
[[Category: Steinmetz MO]]