2g3k: Difference between revisions

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-[[Image:2g3k.gif|left|200px]]
- {{Structure
+==Crystal structure of the C-terminal domain of Vps28==
-|PDB= 2g3k |SIZE=350|CAPTION= <scene name='initialview01'>2g3k</scene>, resolution 3.05&Aring;
+<StructureSection load='2g3k' size='340' side='right'caption='[[2g3k]], [[Resolution|resolution]] 3.05&Aring;' scene=''>
-|SITE=
+== Structural highlights ==
-|LIGAND= <scene name='pdbligand=MSE:SELENOMETHIONINE'>MSE</scene>
+<table><tr><td colspan='2'>[[2g3k]] is a 7 chain structure with sequence from [https://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2G3K OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2G3K FirstGlance]. <br>
-|ACTIVITY=
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.05&#8491;</td></tr>
-|GENE= VPS28 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=4932 Saccharomyces cerevisiae])
+<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>
-|DOMAIN=
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2g3k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2g3k OCA], [https://pdbe.org/2g3k PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2g3k RCSB], [https://www.ebi.ac.uk/pdbsum/2g3k PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2g3k ProSAT]</span></td></tr>
-|RELATEDENTRY=
+</table>
-|RESOURCES=<span class='plainlinks'>[http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2g3k FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2g3k OCA], [http://www.ebi.ac.uk/pdbsum/2g3k PDBsum], [http://www.rcsb.org/pdb/explore.do?structureId=2g3k RCSB]</span>
+== Function ==
-}}
+[https://www.uniprot.org/uniprot/VPS28_YEAST VPS28_YEAST] Component of the ESCRT-I complex, a regulator of vesicular trafficking process. Required for normal endocytic and biosynthetic traffic to the yeast vacuole.
+== 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/g3/2g3k_consurf.spt"</scriptWhenChecked>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.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/main_output.php?pdb_ID=2g3k ConSurf].
+<div style="clear:both"></div>
+<div style="background-color:#fffaf0;">
+== Publication Abstract from PubMed ==
+The endosomal sorting complex I required for transport (ESCRT-I) is composed of the three subunits Vps23/Tsg101, Vps28 and Vps37. ESCRT-I is recruited to cellular membranes during multivesicular endosome biogenesis and by enveloped viruses such as HIV-1 to mediate budding from the cell. Here, we describe the crystal structure of a conserved C-terminal domain from Sacharomyces cerevisiae Vps28 (Vps28-CTD) at 3.05 A resolution which folds independently into a four-helical bundle structure. Co-expression experiments of Vps28-CTD, Vps23 and Vps37 suggest that Vps28-CTD does not directly participate in ESCRT-I assembly and may thus act as an adaptor module for downstream interaction partners. We show through mutagenesis studies that Vps28-CTD employs its strictly conserved surface in the interaction with the ESCRT-III factor Vps20. Furthermore, we present evidence that Vps28-CTD is sufficient to rescue an equine infectious anaemia virus (EIAV) Gag late domain deletion. Vps28-CTD mutations abolishing Vps20 interaction in vitro also prevent the rescue of the EIAV Gag late domain mutant consistent with a potential direct Vps28-ESCRT-III Vps20 recruitment. Therefore, the physiological relevant EIAV Gag-Alix interaction can be functionally replaced by a Gag-Vps28-CTD fusion. Because both Alix and Vps28-CTD can directly recruit ESCRT-III proteins, ESCRT-III assembly coupled to Vps4 action may therefore constitute the minimal budding machinery for EIAV release.
-'''Crystal structure of the C-terminal domain of Vps28'''
+The crystal structure of the C-terminal domain of Vps28 reveals a conserved surface required for Vps20 recruitment.,Pineda-Molina E, Belrhali H, Piefer AJ, Akula I, Bates P, Weissenhorn W Traffic. 2006 Aug;7(8):1007-16. Epub 2006 Jun 2. PMID:16749904<ref>PMID:16749904</ref>
+From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
+</div>
+<div class="pdbe-citations 2g3k" style="background-color:#fffaf0;"></div>
-==Overview==
+==See Also==
-The endosomal sorting complex I required for transport (ESCRT-I) is composed of the three subunits Vps23/Tsg101, Vps28 and Vps37. ESCRT-I is recruited to cellular membranes during multivesicular endosome biogenesis and by enveloped viruses such as HIV-1 to mediate budding from the cell. Here, we describe the crystal structure of a conserved C-terminal domain from Sacharomyces cerevisiae Vps28 (Vps28-CTD) at 3.05 A resolution which folds independently into a four-helical bundle structure. Co-expression experiments of Vps28-CTD, Vps23 and Vps37 suggest that Vps28-CTD does not directly participate in ESCRT-I assembly and may thus act as an adaptor module for downstream interaction partners. We show through mutagenesis studies that Vps28-CTD employs its strictly conserved surface in the interaction with the ESCRT-III factor Vps20. Furthermore, we present evidence that Vps28-CTD is sufficient to rescue an equine infectious anaemia virus (EIAV) Gag late domain deletion. Vps28-CTD mutations abolishing Vps20 interaction in vitro also prevent the rescue of the EIAV Gag late domain mutant consistent with a potential direct Vps28-ESCRT-III Vps20 recruitment. Therefore, the physiological relevant EIAV Gag-Alix interaction can be functionally replaced by a Gag-Vps28-CTD fusion. Because both Alix and Vps28-CTD can directly recruit ESCRT-III proteins, ESCRT-III assembly coupled to Vps4 action may therefore constitute the minimal budding machinery for EIAV release.
+*[[Vacuolar protein sorting-associated protein 3D structures|Vacuolar protein sorting-associated protein 3D structures]]
+== References ==
-==About this Structure==
+<references/>
-G3K is a [[Single protein]] structure of sequence from [http://en.wikipedia.org/wiki/Saccharomyces_cerevisiae Saccharomyces cerevisiae]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2G3K OCA].
+__TOC__
+</StructureSection>
-==Reference==
+[[Category: Large Structures]]
-The crystal structure of the C-terminal domain of Vps28 reveals a conserved surface required for Vps20 recruitment., Pineda-Molina E, Belrhali H, Piefer AJ, Akula I, Bates P, Weissenhorn W, Traffic. 2006 Aug;7(8):1007-16. Epub 2006 Jun 2. PMID:[http://www.ncbi.nlm.nih.gov/pubmed/16749904 16749904]
 [[Category: Saccharomyces cerevisiae]]
-[[Category: Single protein]]
+[[Category: Akula I]]
-[[Category: Akula, I.]]
+[[Category: Bates P]]
-[[Category: Bates, P.]]
+[[Category: Belrhali H]]
-[[Category: Belrhali, H.]]
+[[Category: Piefer AJ]]
-[[Category: Piefer, A J.]]
+[[Category: Pineda-Molina E]]
-[[Category: Pineda-Molina, E.]]
+[[Category: Weissenhorn W]]
-[[Category: Weissenhorn, W.]]
-[[Category: 4 helix bundle]]
-''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Mar 31 03:11:21 2008''