2bhr: Difference between revisions

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{{Seed}}
[[Image:2bhr.png|left|200px]]


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==Dengue virus RNA helicase==
The line below this paragraph, containing "STRUCTURE_2bhr", creates the "Structure Box" on the page.
<StructureSection load='2bhr' size='340' side='right'caption='[[2bhr]], [[Resolution|resolution]] 2.80&Aring;' scene=''>
You may change the PDB parameter (which sets the PDB file loaded into the applet)  
== Structural highlights ==
or the SCENE parameter (which sets the initial scene displayed when the page is loaded),
<table><tr><td colspan='2'>[[2bhr]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/Dengue_virus_2 Dengue virus 2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BHR OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=2BHR FirstGlance]. <br>
or leave the SCENE parameter empty for the default display.
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.8&#8491;</td></tr>
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<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
{{STRUCTURE_2bhr|  PDB=2bhr  |  SCENE=  }}
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=2bhr FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=2bhr OCA], [https://pdbe.org/2bhr PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=2bhr RCSB], [https://www.ebi.ac.uk/pdbsum/2bhr PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=2bhr ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/Q91H74_9FLAV Q91H74_9FLAV] Envelope protein E binding to host cell surface receptor is followed by virus internalization through clathrin-mediated endocytosis. Envelope protein E is subsequently involved in membrane fusion between virion and host late endosomes. Synthesized as a homodimer with prM which acts as a chaperone for envelope protein E. After cleavage of prM, envelope protein E dissociate from small envelope protein M and homodimerizes (By similarity).[SAAS:SAAS026470_004_099774]
== 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/bh/2bhr_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/main_output.php?pdb_ID=2bhr ConSurf].
<div style="clear:both"></div>
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
Dengue fever is an important emerging public health concern, with several million viral infections occurring annually, for which no effective therapy currently exists. The NS3 protein from Dengue virus is a multifunctional protein of 69 kDa, endowed with protease, helicase, and nucleoside 5'-triphosphatase (NTPase) activities. Thus, NS3 plays an important role in viral replication and represents a very interesting target for the development of specific antiviral inhibitors. We present the structure of an enzymatically active fragment of the Dengue virus NTPase/helicase catalytic domain to 2.4 A resolution. The structure is composed of three domains, displays an asymmetric distribution of charges on its surface, and contains a tunnel large enough to accommodate single-stranded RNA. Its C-terminal domain adopts a new fold compared to the NS3 helicase of hepatitis C virus, which has interesting implications for the evolution of the Flaviviridae replication complex. A bound sulfate ion reveals residues involved in the metal-dependent NTPase catalytic mechanism. Comparison with the NS3 hepatitis C virus helicase complexed to single-stranded DNA would place the 3' single-stranded tail of a nucleic acid duplex in the tunnel that runs across the basic face of the protein. A possible model for the unwinding mechanism is proposed.


===DENGUE VIRUS RNA HELICASE===
Structure of the Dengue virus helicase/nucleoside triphosphatase catalytic domain at a resolution of 2.4 A.,Xu T, Sampath A, Chao A, Wen D, Nanao M, Chene P, Vasudevan SG, Lescar J J Virol. 2005 Aug;79(16):10278-88. PMID:16051821<ref>PMID:16051821</ref>


From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
<div class="pdbe-citations 2bhr" style="background-color:#fffaf0;"></div>


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==See Also==
The line below this paragraph, {{ABSTRACT_PUBMED_16051821}}, adds the Publication Abstract to the page
*[[Helicase 3D structures|Helicase 3D structures]]
(as it appears on PubMed at http://www.pubmed.gov), where 16051821 is the PubMed ID number.
== References ==
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<references/>
{{ABSTRACT_PUBMED_16051821}}
__TOC__
 
</StructureSection>
==About this Structure==
2BHR is a 2 chains structure of sequences from [http://en.wikipedia.org/wiki/Dengue_virus_2 Dengue virus 2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=2BHR OCA].
 
==Reference==
<ref group="xtra">PMID:16051821</ref><references group="xtra"/>
[[Category: Dengue virus 2]]
[[Category: Dengue virus 2]]
[[Category: Chao, A.]]
[[Category: Large Structures]]
[[Category: Chene, P.]]
[[Category: Chao A]]
[[Category: Lescar, J.]]
[[Category: Chene P]]
[[Category: Nanao, M.]]
[[Category: Lescar J]]
[[Category: Sampath, A.]]
[[Category: Nanao M]]
[[Category: Vasudevan, S G.]]
[[Category: Sampath A]]
[[Category: Wen, D.]]
[[Category: Vasudevan SG]]
[[Category: Xu, T.]]
[[Category: Wen D]]
[[Category: Dengue virus]]
[[Category: Xu T]]
[[Category: Nucleoside triphosphatase]]
[[Category: Rna helicase]]
 
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Retrieved from "https://proteopedia.org/2bhr"