3k8p: Difference between revisions

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{{STRUCTURE_3k8p| PDB=3k8p | SCENE= }}
==Structural basis for vesicle tethering by the Dsl1 complex==
===Structural basis for vesicle tethering by the Dsl1 complex===
<StructureSection load='3k8p' size='340' side='right' caption='[[3k8p]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
{{ABSTRACT_PUBMED_20005805}}
== Structural highlights ==
<table><tr><td colspan='2'>[[3k8p]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Kluyveromyces_lactis Kluyveromyces lactis] and [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3K8P OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3K8P FirstGlance]. <br>
</td></tr><tr id='NonStdRes'><td class="sblockLbl"><b>[[Non-Standard_Residue|NonStd Res:]]</b></td><td class="sblockDat"><scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene></td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">KLLA0C02695g ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=28985 Kluyveromyces lactis]), SEC39, DSL3, YLR440C ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 Saccharomyces cerevisiae])</td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3k8p FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3k8p OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3k8p RCSB], [http://www.ebi.ac.uk/pdbsum/3k8p PDBsum]</span></td></tr>
</table>
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/k8/3k8p_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/chain_selection.php?pdb_ID=2ata ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Vesicle trafficking requires membrane fusion, mediated by SNARE proteins, and upstream events that probably include "tethering," an initial long-range attachment between a vesicle and its target organelle. Among the factors proposed to mediate tethering are a set of multisubunit tethering complexes (MTCs). The Dsl1 complex, with only three subunits, is the simplest known MTC and is essential for the retrograde traffic of COPI-coated vesicles from the Golgi to the ER. To elucidate structural principles underlying MTC function, we have determined the structure of the Dsl1 complex, revealing a tower containing at its base the binding sites for two ER SNAREs and at its tip a flexible lasso for capturing vesicles. The Dsl1 complex binds to individual SNAREs via their N-terminal regulatory domains and also to assembled SNARE complexes; moreover, it is capable of accelerating SNARE complex assembly. Our results suggest that even the simplest MTC may be capable of orchestrating vesicle capture, uncoating, and fusion.


==Function==
A structure-based mechanism for vesicle capture by the multisubunit tethering complex Dsl1.,Ren Y, Yip CK, Tripathi A, Huie D, Jeffrey PD, Walz T, Hughson FM Cell. 2009 Dec 11;139(6):1119-29. PMID:20005805<ref>PMID:20005805</ref>
[[http://www.uniprot.org/uniprot/SEC39_YEAST SEC39_YEAST]] Required for protein transport between the Golgi and the endoplasmic reticulum. May contribute to tethering of coatomer-coated retrograde transport vesicles to the ER membrane through interaction with and stabilization of the SNARE complex.<ref>PMID:15242642</ref> <ref>PMID:15958492</ref>


==About this Structure==
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
[[3k8p]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Kluyveromyces_lactis Kluyveromyces lactis] and [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3K8P OCA].
</div>
 
== References ==
==Reference==
<references/>
<ref group="xtra">PMID:020005805</ref><references group="xtra"/><references/>
__TOC__
</StructureSection>
[[Category: Kluyveromyces lactis]]
[[Category: Kluyveromyces lactis]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Saccharomyces cerevisiae]]
[[Category: Hughson, F M.]]
[[Category: Hughson, F M]]
[[Category: Jeffrey, P D.]]
[[Category: Jeffrey, P D]]
[[Category: Ren, Y.]]
[[Category: Ren, Y]]
[[Category: Dsl1 complex]]
[[Category: Dsl1 complex]]
[[Category: Endoplasmic reticulum]]
[[Category: Endoplasmic reticulum]]