3frt

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{{Seed}}
 
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[[Image:3frt.jpg|left|200px]]
 
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==The structure of human CHMP3 (residues 8 - 222).==
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The line below this paragraph, containing "STRUCTURE_3frt", creates the "Structure Box" on the page.
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<StructureSection load='3frt' size='340' side='right'caption='[[3frt]], [[Resolution|resolution]] 4.00&Aring;' scene=''>
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You may change the PDB parameter (which sets the PDB file loaded into the applet)
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== Structural highlights ==
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or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
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<table><tr><td colspan='2'>[[3frt]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FRT OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3FRT FirstGlance]. <br>
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or leave the SCENE parameter empty for the default display.
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 4&#8491;</td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=3frt FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3frt OCA], [https://pdbe.org/3frt PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3frt RCSB], [https://www.ebi.ac.uk/pdbsum/3frt PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3frt ProSAT]</span></td></tr>
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{{STRUCTURE_3frt| PDB=3frt | SCENE= }}
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</table>
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== Function ==
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[https://www.uniprot.org/uniprot/CHMP3_HUMAN CHMP3_HUMAN] Probable core component of the endosomal sorting required for transport complex III (ESCRT-III) which is involved in multivesicular bodies (MVBs) formation and sorting of endosomal cargo proteins into MVBs. MVBs contain intraluminal vesicles (ILVs) that are generated by invagination and scission from the limiting membrane of the endosome and mostly are delivered to lysosomes enabling degradation of membrane proteins, such as stimulated growth factor receptors, lysosomal enzymes and lipids. The MVB pathway appears to require the sequential function of ESCRT-O, -I,-II and -III complexes. ESCRT-III proteins mostly dissociate from the invaginating membrane before the ILV is released. The ESCRT machinery also functions in topologically equivalent membrane fission events, such as the terminal stages of cytokinesis and the budding of enveloped viruses (HIV-1 and other lentiviruses). ESCRT-III proteins are believed to mediate the necessary vesicle extrusion and/or membrane fission activities, possibly in conjunction with the AAA ATPase VPS4. Selectively binds to phosphatidylinositol 3,5-bisphosphate PtdIns(3,5)P2 and PtdIns(3,4)P2 in preference to other phosphoinositides tested. Involved in late stages of cytokinesis. Plays a role in endosomal sorting/trafficking of EGF receptor. Isoform 2 prevents stress-mediated cell death and accumulation of reactive oxygen species when expressed in yeast cells.<ref>PMID:15707591</ref> <ref>PMID:17331679</ref> <ref>PMID:14505570</ref> <ref>PMID:18076377</ref> <ref>PMID:16740483</ref>
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== Evolutionary Conservation ==
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[[Image:Consurf_key_small.gif|200px|right]]
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Check<jmol>
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<jmolCheckbox>
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<scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fr/3frt_consurf.spt"</scriptWhenChecked>
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<scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
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<text>to colour the structure by Evolutionary Conservation</text>
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</jmolCheckbox>
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</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=3frt ConSurf].
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<div style="clear:both"></div>
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<div style="background-color:#fffaf0;">
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== Publication Abstract from PubMed ==
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Endosomal sorting complexes required for transport-III (ESCRT-III) subunits cycle between two states: soluble monomers and higher-order assemblies that bind and remodel membranes during endosomal vesicle formation, midbody abscission and enveloped virus budding. Here we show that the N-terminal core domains of increased sodium tolerance-1 (IST1) and charged multivesicular body protein-3 (CHMP3) form equivalent four-helix bundles, revealing that IST1 is a previously unrecognized ESCRT-III family member. IST1 and its ESCRT-III binding partner, CHMP1B, both form higher-order helical structures in vitro, and IST1-CHMP1 interactions are required for abscission. The IST1 and CHMP3 structures also reveal that equivalent downstream alpha5 helices can fold back against the core domains. Mutations within the CHMP3 core-alpha5 interface stimulate the protein's in vitro assembly and HIV-inhibition activities, indicating that dissociation of the autoinhibitory alpha5 helix from the core activates ESCRT-III proteins for assembly at membranes.
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===The structure of human CHMP3 (residues 8 - 222).===
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Structural basis for ESCRT-III protein autoinhibition.,Bajorek M, Schubert HL, McCullough J, Langelier C, Eckert DM, Stubblefield WM, Uter NT, Myszka DG, Hill CP, Sundquist WI Nat Struct Mol Biol. 2009 Jul;16(7):754-62. Epub 2009 Jun 14. PMID:19525971<ref>PMID:19525971</ref>
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
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</div>
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<div class="pdbe-citations 3frt" style="background-color:#fffaf0;"></div>
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==See Also==
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The line below this paragraph, {{ABSTRACT_PUBMED_19525971}}, adds the Publication Abstract to the page
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*[[Charged multivesicular body protein 3D structures|Charged multivesicular body protein 3D structures]]
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(as it appears on PubMed at http://www.pubmed.gov), where 19525971 is the PubMed ID number.
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== References ==
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<references/>
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{{ABSTRACT_PUBMED_19525971}}
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__TOC__
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</StructureSection>
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==About this Structure==
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3FRT is a 2 chains structure of sequences from [http://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FRT OCA].
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==Reference==
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<ref group="xtra">PMID:19525971</ref><references group="xtra"/>
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[[Category: Homo sapiens]]
[[Category: Homo sapiens]]
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[[Category: Hill, C P.]]
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[[Category: Large Structures]]
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[[Category: McCullough, J.]]
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[[Category: Hill CP]]
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[[Category: Schubert, H L.]]
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[[Category: McCullough J]]
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[[Category: Sundquist, W I.]]
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[[Category: Schubert HL]]
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[[Category: Chmp]]
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[[Category: Sundquist WI]]
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[[Category: Coiled coil]]
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[[Category: Cytoplasm]]
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[[Category: Escrt]]
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[[Category: Escrt-111]]
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[[Category: Ist1]]
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[[Category: Lipoprotein]]
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[[Category: Membrane]]
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[[Category: Myristate]]
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[[Category: Phosphoprotein]]
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[[Category: Protein transport]]
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[[Category: Transport]]
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''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Wed Jul 1 09:07:24 2009''
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Current revision

The structure of human CHMP3 (residues 8 - 222).

PDB ID 3frt

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Proteopedia Page Contributors and Editors (what is this?)

OCA

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