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2c6s

From Proteopedia

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human adenovirus penton base 2 12 chimera

Structural highlights

2c6s is a 15 chain structure with sequence from Human adenovirus 2. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 3.6Å
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

CAPSP_ADE02 Major capsid protein that self-associates to form penton base pentamers, each in the shape of a pentagon, situated at the 12 vertices of the pseudo T=25 capsid. Involved in virus secondary attachment to host cell after initial attachment by the fiber protein. Binds host integrin heterodimer ITGAV-ITGB5 (alphaV-beta5) thereby triggering clathrin-mediated endocytosis of virions. Mediates initial virus attachment to CXADR-negative cells. Binding to integrins ITGAV-ITGB5 also seems to induce macropinocytosis uptake of the virus. As the virus enters the host cell, penton proteins are shed concomitant with virion acidification in the endosome.^[1] ^[2] ^[3]

Evolutionary Conservation

Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf.

Publication Abstract from PubMed

The vertex of the adenoviral capsid is formed by the penton, a complex of two proteins, the pentameric penton base and the trimeric fiber protein. The penton contains all necessary components for viral attachment and entry into the host cell. After initial attachment via the head domain of the fiber protein, the penton base interacts with cellular integrins through an Arg-Gly-Asp (RGD) motif located in a hypervariable surface loop, triggering virus internalization. In order to investigate the structural and functional role of this region, we replaced the hypervariable loop of serotype 2 with the corresponding, but much shorter, loop of serotype 12 and compared it to the wild type. Here, we report the 3.6 A crystal structure of a human adenovirus 2/12 penton base chimera crystallized as a dodecamer. The structure is generally similar to human adenovirus 2 penton base, with the main differences localized to the fiber protein-binding site. Fluorescence anisotropy assays using a trimeric fiber protein mimetic called the minifiber and wild-type human adenovirus 2 and chimeric penton base demonstrate that fiber protein binding is independent of the hypervariable loop, with a K(d) for fiber binding estimated in the 1-2 microm range. Interestingly, competition assays using labeled and unlabeled minifiber demonstrated virtually irreversible binding to the penton base, which we ascribe to a conformational change, on the basis of comparisons of all available penton base structures.

Structural and biochemical characterization of a human adenovirus 2/12 penton base chimera.,Zubieta C, Blanchoin L, Cusack S FEBS J. 2006 Sep;273(18):4336-45. PMID:16939624^[4]

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

References

↑ Meier O, Boucke K, Hammer SV, Keller S, Stidwill RP, Hemmi S, Greber UF. Adenovirus triggers macropinocytosis and endosomal leakage together with its clathrin-mediated uptake. J Cell Biol. 2002 Sep 16;158(6):1119-31. Epub 2002 Sep 9. PMID:12221069 doi:http://dx.doi.org/10.1083/jcb.200112067
↑ Lyle C, McCormick F. Integrin alphavbeta5 is a primary receptor for adenovirus in CAR-negative cells. Virol J. 2010 Jul 8;7:148. doi: 10.1186/1743-422X-7-148. PMID:20615244 doi:10.1186/1743-422X-7-148
↑ Liu H, Jin L, Koh SB, Atanasov I, Schein S, Wu L, Zhou ZH. Atomic structure of human adenovirus by cryo-EM reveals interactions among protein networks. Science. 2010 Aug 27;329(5995):1038-43. PMID:20798312 doi:10.1126/science.1187433
↑ Zubieta C, Blanchoin L, Cusack S. Structural and biochemical characterization of a human adenovirus 2/12 penton base chimera. FEBS J. 2006 Sep;273(18):4336-45. PMID:16939624 doi:http://dx.doi.org/10.1111/j.1742-4658.2006.05430.x

1 Structural highlights
2 Function
3 Evolutionary Conservation
4 Publication Abstract from PubMed
5 References

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/2c6s"

Categories: Human adenovirus 2 | Large Structures | Blanchoin L | Cusack S | Zubieta C

@@ Line 1: / Line 1: @@
-==HUMAN ADENOVIRUS PENTON BASE 2 12 CHIMERA==
-<StructureSection load='2c6s' size='340' side='right' caption='[[2c6s]], [[Resolution|resolution]] 3.60&Aring;' scene=''>
+==human adenovirus penton base 2 12 chimera==
+<StructureSection load='2c6s' size='340' side='right'caption='[[2c6s]], [[Resolution|resolution]] 3.60&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[2c6s]] is a 15 chain structure with sequence from [http://en.wikipedia.org/wiki/Human_adenovirus_c Human adenovirus c]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2C6S OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=2C6S FirstGlance]. <br>
+<table><tr><td colspan='2'>[[2c6s]] is a 15 chain structure with sequence from [https://en.wikipedia.org/wiki/Human_adenovirus_2 Human adenovirus 2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2C6S OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2C6S FirstGlance]. <br>
-</td></tr><tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[1x9p|1x9p]], [[1x9t|1x9t]], [[2bld|2bld]], [[2bvi|2bvi]]</td></tr>
+</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 3.6&#8491;</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=2c6s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2c6s OCA], [http://www.rcsb.org/pdb/explore.do?structureId=2c6s RCSB], [http://www.ebi.ac.uk/pdbsum/2c6s PDBsum]</span></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=2c6s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2c6s OCA], [https://pdbe.org/2c6s PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2c6s RCSB], [https://www.ebi.ac.uk/pdbsum/2c6s PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2c6s ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[http://www.uniprot.org/uniprot/PEN3_ADE02 PEN3_ADE02]] Major capsid protein that self-associates to form penton base pentamers, each in the shape of a pentagon, situated at the 12 vertices of the pseudo T=25 capsid. Involved in virus secondary attachment to host cell after initial attachment by the fiber protein. Binds host integrin heterodimer ITGAV-ITGB5 (alphaV-beta5) thereby triggering clathrin-mediated endocytosis of virions. Mediates initial virus attachment to CXADR-negative cells. Binding to integrins ITGAV-ITGB5 also seems to induce macropinocytosis uptake of the virus. As the virus enters the host cell, penton proteins are shed concomitant with virion acidification in the endosome.<ref>PMID:12221069</ref> <ref>PMID:20615244</ref> <ref>PMID:20798312</ref>
+[https://www.uniprot.org/uniprot/CAPSP_ADE02 CAPSP_ADE02] Major capsid protein that self-associates to form penton base pentamers, each in the shape of a pentagon, situated at the 12 vertices of the pseudo T=25 capsid. Involved in virus secondary attachment to host cell after initial attachment by the fiber protein. Binds host integrin heterodimer ITGAV-ITGB5 (alphaV-beta5) thereby triggering clathrin-mediated endocytosis of virions. Mediates initial virus attachment to CXADR-negative cells. Binding to integrins ITGAV-ITGB5 also seems to induce macropinocytosis uptake of the virus. As the virus enters the host cell, penton proteins are shed concomitant with virion acidification in the endosome.<ref>PMID:12221069</ref> <ref>PMID:20615244</ref> <ref>PMID:20798312</ref>
 == 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/c6/2c6s_consurf.spt"</scriptWhenChecked>
+    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/c6/2c6s_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].
+</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=2c6s ConSurf].
 <div style="clear:both"></div>
 <div style="background-color:#fffaf0;">
@@ Line 26: / Line 27: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 2c6s" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Human adenovirus c]]
+[[Category: Human adenovirus 2]]
-[[Category: Blanchoin, L]]
+[[Category: Large Structures]]
-[[Category: Cusack, S]]
+[[Category: Blanchoin L]]
-[[Category: Zubieta, C]]
+[[Category: Cusack S]]
-[[Category: Adenovirus]]
+[[Category: Zubieta C]]
-[[Category: Capsid]]
-[[Category: Dodecahedra]]
-[[Category: Fiber]]
-[[Category: Penton]]
-[[Category: Viral protein]]
-[[Category: Virus-viral protein complex]]
-[[Category: Virus/viral protein]]

2c6s

From Proteopedia

Current revision

human adenovirus penton base 2 12 chimera

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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