View source for 7e94


==Intact TRAPPII (State II)==
<StructureSection load='7e94' size='340' side='right'caption='[[7e94]], [[Resolution|resolution]] 4.67&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[7e94]] is a 22 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae_S288C Saccharomyces cerevisiae S288C]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7E94 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7E94 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]] 4.67&#8491;</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=7e94 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7e94 OCA], [https://pdbe.org/7e94 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7e94 RCSB], [https://www.ebi.ac.uk/pdbsum/7e94 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7e94 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/TCA17_YEAST TCA17_YEAST] Required, together with the TRAPP II subunit TRS33, for TRAPP II complex assembly or stability, and for proper Golgi localization of TRAPP and the Rab GTPase YPT31.<ref>PMID:19220810</ref> <ref>PMID:19416478</ref> 
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Transport protein particle (TRAPP) complexes belong to the multiprotein tethering complex and exist in three forms-core TRAPP/TRAPPI, TRAPPII, and TRAPPIII. TRAPPII activates GTPase Ypt31/Ypt32 as the guanine nucleotide exchange factor in the trans-Golgi network to determine the maturation of Golgi cisternae into post-Golgi carriers in yeast. Here, we present cryo-EM structures of yeast TRAPPII in apo and Ypt32-bound states. All the structures show a dimeric architecture assembled by two triangle-shaped monomers, while the monomer in the apo state exhibits both open and closed conformations, and the monomer in the Ypt32-bound form only captures the closed conformation. Located in the interior of the monomer, Ypt32 binds with both core TRAPP/TRAPPI and Trs120 via its nucleotide-binding domain and binds with Trs31 via its hypervariable domain. Combined with functional analysis, the structures provide insights into the assembly of TRAPPII and the mechanism of the specific activation of Ypt31/Ypt32 by TRAPPII.

Structural basis for assembly of TRAPPII complex and specific activation of GTPase Ypt31/32.,Mi C, Zhang L, Huang G, Shao G, Yang F, You X, Dong MQ, Sun S, Sui SF Sci Adv. 2022 Jan 28;8(4):eabi5603. doi: 10.1126/sciadv.abi5603. Epub 2022 Jan , 26. PMID:35080977<ref>PMID:35080977</ref>

From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 7e94" style="background-color:#fffaf0;"></div>
== References ==
<references/>
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</StructureSection>
[[Category: Large Structures]]
[[Category: Saccharomyces cerevisiae S288C]]
[[Category: Mi CC]]
[[Category: Sui SF]]