4ozq: Difference between revisions
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''' | ==Crystal structure of the mouse Kif14 motor domain== | ||
<StructureSection load='4ozq' size='340' side='right' caption='[[4ozq]], [[Resolution|resolution]] 2.71Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[4ozq]] is a 2 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4OZQ OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4OZQ FirstGlance]. <br> | |||
</td></tr><tr><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=ADP:ADENOSINE-5-DIPHOSPHATE'>ADP</scene>, <scene name='pdbligand=EDO:1,2-ETHANEDIOL'>EDO</scene><br> | |||
<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=4ozq FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4ozq OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4ozq RCSB], [http://www.ebi.ac.uk/pdbsum/4ozq PDBsum]</span></td></tr> | |||
<table> | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
The mitotic kinesin motor protein KIF14 is essential for cytokinesis during cell division, and has been implicated in cerebral development and a variety of human cancers. Here we show that the mouse KIF14 motor domain binds tightly to microtubules and does not display typical nucleotide-dependent changes in this affinity. It also has robust ATPase activity but very slow motility. A crystal structure of the ADP-bound form of the KIF14 motor domain reveals a dramatically opened ATP binding pocket, as if ready to exchange its bound ADP for Mg.ATP. In this state, the central beta-sheet is twisted ~10 degrees beyond the maximal amount observed in other kinesins. This configuration has only been seen in the nucleotide-free states of myosins - known as the 'rigor-like' state. Fitting of this atomic model to electron density maps from cryo-electron microscopy indicates a distinct binding configuration of the motor domain to microtubules. We postulate that these properties of KIF14 are well-suited for stabilizing midbody microtubules during cytokinesis. | |||
KIF14 binds tightly to microtubules and adopts a rigor-like conformation.,Arora K, Talje L, Asenjo AB, Andersen P, Atchia K, Joshi M, Sosa H, Allingham JS, Kwok BH J Mol Biol. 2014 Jun 17. pii: S0022-2836(14)00282-4. doi:, 10.1016/j.jmb.2014.05.030. PMID:24949858<ref>PMID:24949858</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
</div> | |||
== References == | |||
<references/> | |||
__TOC__ | |||
</StructureSection> | |||
[[Category: Allingham, J S.]] | |||
[[Category: Andersen, P.]] | |||
[[Category: Arora, K.]] | |||
[[Category: Asenjo, A B.]] | |||
[[Category: Atchia, K.]] | |||
[[Category: Joshi, M.]] | |||
[[Category: Kwok, B H.]] | |||
[[Category: Sosa, H.]] | |||
[[Category: Talje, L.]] | |||
[[Category: Atpase]] | |||
[[Category: Kinesin]] | |||
[[Category: Motor protein]] |