6qdk: Difference between revisions
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==Molecular features of the UNC-45 chaperone critical for binding and folding muscle myosin== | |||
<StructureSection load='6qdk' size='340' side='right'caption='[[6qdk]], [[Resolution|resolution]] 3.40Å' scene=''> | |||
== Structural highlights == | |||
<table><tr><td colspan='2'>[[6qdk]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Caenorhabditis_elegans Caenorhabditis elegans]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=6QDK OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=6QDK 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]] 3.4Å</td></tr> | |||
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</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=6qdk FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=6qdk OCA], [https://pdbe.org/6qdk PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=6qdk RCSB], [https://www.ebi.ac.uk/pdbsum/6qdk PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=6qdk ProSAT]</span></td></tr> | |||
</table> | |||
== Function == | |||
[https://www.uniprot.org/uniprot/G5EG62_CAEEL G5EG62_CAEEL] | |||
<div style="background-color:#fffaf0;"> | |||
== Publication Abstract from PubMed == | |||
Myosin is a motor protein that is essential for a variety of processes ranging from intracellular transport to muscle contraction. Folding and assembly of myosin relies on a specific chaperone, UNC-45. To address its substrate-targeting mechanism, we reconstitute the interplay between Caenorhabditis elegans UNC-45 and muscle myosin MHC-B in insect cells. In addition to providing a cellular chaperone assay, the established system enabled us to produce large amounts of functional muscle myosin, as evidenced by a biochemical and structural characterization, and to directly monitor substrate binding to UNC-45. Data from in vitro and cellular chaperone assays, together with crystal structures of binding-deficient UNC-45 mutants, highlight the importance of utilizing a flexible myosin-binding domain. This so-called UCS domain can adopt discrete conformations to efficiently bind and fold substrate. Moreover, our data uncover the molecular basis of temperature-sensitive UNC-45 mutations underlying one of the most prominent motility defects in C. elegans. | |||
Molecular features of the UNC-45 chaperone critical for binding and folding muscle myosin.,Hellerschmied D, Lehner A, Franicevic N, Arnese R, Johnson C, Vogel A, Meinhart A, Kurzbauer R, Deszcz L, Gazda L, Geeves M, Clausen T Nat Commun. 2019 Oct 21;10(1):4781. doi: 10.1038/s41467-019-12667-8. PMID:31636255<ref>PMID:31636255</ref> | |||
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br> | |||
[[Category: | </div> | ||
[[Category: Clausen | <div class="pdbe-citations 6qdk" style="background-color:#fffaf0;"></div> | ||
[[Category: Hellerschmied | == References == | ||
[[Category: Meinhart | <references/> | ||
__TOC__ | |||
</StructureSection> | |||
[[Category: Caenorhabditis elegans]] | |||
[[Category: Large Structures]] | |||
[[Category: Clausen T]] | |||
[[Category: Hellerschmied D]] | |||
[[Category: Meinhart A]] | |||