1vhi

From Proteopedia

(Difference between revisions)

Revision as of 13:34, 10 September 2015

EPSTEIN BARR VIRUS NUCLEAR ANTIGEN-1 DNA-BINDING DOMAIN, RESIDUES 470-607

Structural highlights

1vhi is a 2 chain structure with sequence from Ebvg. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Gene:	E2 (EBVG)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum

Function

[EBNA1_EBVB9] Plays an essential role in replication and partitioning of viral genomic DNA during latent viral infection. During this phase, the circular double-stranded viral DNA undergoes replication once per cell cycle and is efficiently partitioned to the daughter cells. EBNA1 activates the initiation of viral DNA replication through binding to specific sites in the viral latent origin of replication, oriP. Additionally, it governs the segregation of viral episomes by mediating their attachment to host cell metaphase chromosomes. Also activates the transcription of several viral latency genes. Finally, it can counteract the stabilization of host p53/TP53 by host USP7, thereby decreasing apoptosis and increasing host cell survival.^[1]

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 crystal structure of the DNA-binding and dimerization domains of the Epstein-Barr virus nuclear antigen 1 (EBNA1), which binds to and activates DNA replication from the latent origin of replication in Epstein-Barr virus, was solved at 2.5 A resolution. EBNA1 appears to bind DNA via two independent regions termed the core and the flanking DNA-binding domains. The core DNA-binding domain, which comprises both the dimerization domain and a helix predicted to bind the inner portion of the EBNA1 DNA recognition element, was remarkably similar to the structure of the papillomavirus E2 protein, despite a complete lack of sequence conservation. The flanking DNA-binding domain, only a portion of which is contained in the current structure, consists in part of an alpha helix whose N-terminus contacts the outer regions of the EBNA1 DNA recognition element.

Crystal structure of the DNA-binding domain of the Epstein-Barr virus origin-binding protein EBNA 1.,Bochkarev A, Barwell JA, Pfuetzner RA, Furey W Jr, Edwards AM, Frappier L Cell. 1995 Oct 6;83(1):39-46. PMID:7553871^[2]

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

References

↑ Saridakis V, Sheng Y, Sarkari F, Holowaty MN, Shire K, Nguyen T, Zhang RG, Liao J, Lee W, Edwards AM, Arrowsmith CH, Frappier L. Structure of the p53 binding domain of HAUSP/USP7 bound to Epstein-Barr nuclear antigen 1 implications for EBV-mediated immortalization. Mol Cell. 2005 Apr 1;18(1):25-36. PMID:15808506 doi:10.1016/j.molcel.2005.02.029
↑ Bochkarev A, Barwell JA, Pfuetzner RA, Furey W Jr, Edwards AM, Frappier L. Crystal structure of the DNA-binding domain of the Epstein-Barr virus origin-binding protein EBNA 1. Cell. 1995 Oct 6;83(1):39-46. PMID:7553871

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/1vhi"

@@ Line 2: / Line 2: @@
 <StructureSection load='1vhi' size='340' side='right' caption='[[1vhi]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[1vhi]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Human_herpesvirus_4 Human herpesvirus 4]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VHI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1VHI FirstGlance]. <br>
+<table><tr><td colspan='2'>[[1vhi]] is a 2 chain structure with sequence from [http://en.wikipedia.org/wiki/Ebvg Ebvg]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1VHI OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=1VHI FirstGlance]. <br>
-</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">E2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10376 Human herpesvirus 4])</td></tr>
+</td></tr><tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">E2 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10376 EBVG])</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=1vhi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1vhi OCA], [http://www.rcsb.org/pdb/explore.do?structureId=1vhi RCSB], [http://www.ebi.ac.uk/pdbsum/1vhi PDBsum]</span></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=1vhi FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1vhi OCA], [http://pdbe.org/1vhi PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=1vhi RCSB], [http://www.ebi.ac.uk/pdbsum/1vhi PDBsum]</span></td></tr>
 </table>
+== Function ==
+[[http://www.uniprot.org/uniprot/EBNA1_EBVB9 EBNA1_EBVB9]] Plays an essential role in replication and partitioning of viral genomic DNA during latent viral infection. During this phase, the circular double-stranded viral DNA undergoes replication once per cell cycle and is efficiently partitioned to the daughter cells. EBNA1 activates the initiation of viral DNA replication through binding to specific sites in the viral latent origin of replication, oriP. Additionally, it governs the segregation of viral episomes by mediating their attachment to host cell metaphase chromosomes. Also activates the transcription of several viral latency genes. Finally, it can counteract the stabilization of host p53/TP53 by host USP7, thereby decreasing apoptosis and increasing host cell survival.<ref>PMID:15808506</ref>
 == Evolutionary Conservation ==
 [[Image:Consurf_key_small.gif|200px|right]]
@@ Line 24: / Line 26: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 1vhi" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>
 __TOC__
 </StructureSection>
-[[Category: Human herpesvirus 4]]
+[[Category: Ebvg]]
 [[Category: Barwell, J]]
 [[Category: Bochkarev, A]]

1vhi

From Proteopedia

Revision as of 13:34, 10 September 2015

EPSTEIN BARR VIRUS NUCLEAR ANTIGEN-1 DNA-BINDING DOMAIN, RESIDUES 470-607

Structural highlights

Function

Evolutionary Conservation

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox