3fvc

From Proteopedia

(Difference between revisions)

Current revision

Crystal structure of a trimeric variant of the Epstein-Barr virus glycoprotein B

Structural highlights

3fvc is a 1 chain structure with sequence from Human herpesvirus 4 strain B95-8. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 3.2Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

GB_EBVB9 Envelope glycoprotein that forms spikes at the surface of virion envelope. Involved in fusion of viral and cellular membranes leading to virus entry into the host cell. Following initial binding of gp350/220 to its receptor, membrane fusion is mediated by the fusion machinery composed at least of gB and the heterodimer gH/gL. May also be involved in the fusion between the virion envelope and the outer nuclear membrane during virion morphogenesis (By similarity).

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

Epstein-Barr virus (EBV) is a herpesvirus that is associated with development of malignancies of lymphoid tissue. EBV infections are life-long and occur in >90% of the population. Herpesviruses enter host cells in a process that involves fusion of viral and cellular membranes. The fusion apparatus is comprised of envelope glycoprotein B (gB) and a heterodimeric complex made of glycoproteins H and L. Glycoprotein B is the most conserved envelope glycoprotein in human herpesviruses, and the structure of gB from Herpes simplex virus 1 (HSV-1) is available. Here, we report the crystal structure of the secreted EBV gB ectodomain, which forms 16-nm long spike-like trimers, structurally homologous to the postfusion trimers of the fusion protein G of vesicular stomatitis virus (VSV). Comparative structural analyses of EBV gB and VSV G, which has been solved in its pre and postfusion states, shed light on gB residues that may be involved in conformational changes and membrane fusion. Also, the EBV gB structure reveals that, despite the high sequence conservation of gB in herpesviruses, the relative orientations of individual domains, the surface charge distributions, and the structural details of EBV gB differ from the HSV-1 protein, indicating regions and residues that may have important roles in virus-specific entry.

Structure of a trimeric variant of the Epstein-Barr virus glycoprotein B.,Backovic M, Longnecker R, Jardetzky TS Proc Natl Acad Sci U S A. 2009 Feb 24;106(8):2880-5. Epub 2009 Feb 5. PMID:19196955^[1]

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

References

↑ Backovic M, Longnecker R, Jardetzky TS. Structure of a trimeric variant of the Epstein-Barr virus glycoprotein B. Proc Natl Acad Sci U S A. 2009 Feb 24;106(8):2880-5. Epub 2009 Feb 5. PMID:19196955 doi:http://dx.doi.org/0810530106

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3fvc"

Categories: Human herpesvirus 4 strain B95-8 | Large Structures | Backovic M

@@ Line 3: / Line 3: @@
 <StructureSection load='3fvc' size='340' side='right'caption='[[3fvc]], [[Resolution|resolution]] 3.20&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[3fvc]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Ebvb9 Ebvb9]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FVC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3FVC FirstGlance]. <br>
+<table><tr><td colspan='2'>[[3fvc]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Human_herpesvirus_4_strain_B95-8 Human herpesvirus 4 strain B95-8]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3FVC OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=3FVC FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></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]] 3.2&#8491;</td></tr>
-<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">BALF4, VGLB_EBV ([https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10377 EBVB9])</td></tr>
+<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></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=3fvc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3fvc OCA], [https://pdbe.org/3fvc PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=3fvc RCSB], [https://www.ebi.ac.uk/pdbsum/3fvc PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=3fvc ProSAT]</span></td></tr>
 </table>
 == Function ==
-[[https://www.uniprot.org/uniprot/GB_EBVB9 GB_EBVB9]] Envelope glycoprotein that forms spikes at the surface of virion envelope. Involved in fusion of viral and cellular membranes leading to virus entry into the host cell. Following initial binding of gp350/220 to its receptor, membrane fusion is mediated by the fusion machinery composed at least of gB and the heterodimer gH/gL. May also be involved in the fusion between the virion envelope and the outer nuclear membrane during virion morphogenesis (By similarity).
+[https://www.uniprot.org/uniprot/GB_EBVB9 GB_EBVB9] Envelope glycoprotein that forms spikes at the surface of virion envelope. Involved in fusion of viral and cellular membranes leading to virus entry into the host cell. Following initial binding of gp350/220 to its receptor, membrane fusion is mediated by the fusion machinery composed at least of gB and the heterodimer gH/gL. May also be involved in the fusion between the virion envelope and the outer nuclear membrane during virion morphogenesis (By similarity).
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 15: / Line 15: @@
   <jmolCheckbox>
     <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/fv/3fvc_consurf.spt"</scriptWhenChecked>
-    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
+    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview03.spt</scriptWhenUnchecked>
     <text>to colour the structure by Evolutionary Conservation</text>
   </jmolCheckbox>
@@ Line 29: / Line 29: @@
 </div>
 <div class="pdbe-citations 3fvc" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Glycoproteins B and D|Glycoproteins B and D]]
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Ebvb9]]
+[[Category: Human herpesvirus 4 strain B95-8]]
 [[Category: Large Structures]]
-[[Category: Backovic, M]]
+[[Category: Backovic M]]
-[[Category: Fusion loop]]
-[[Category: Glycoprotein]]
-[[Category: Late protein]]
-[[Category: Membrane]]
-[[Category: Ph domain]]
-[[Category: Transmembrane]]
-[[Category: Viral fusion protein]]
-[[Category: Viral protein]]

3fvc

From Proteopedia

Current revision

Crystal structure of a trimeric variant of the Epstein-Barr virus glycoprotein B

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

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