3j05

From Proteopedia

(Difference between revisions)

Revision as of 18:45, 4 August 2016

Three-dimensional structure of Dengue virus serotype 1 complexed with HMAb 14c10 Fab

Structural highlights

3j05 is a 3 chain structure with sequence from Dengue virus 1. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[Q689G3_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:SAAS013754_004_099774]

Publication Abstract from PubMed

Dengue virus (DENV) is a mosquito-borne flavivirus that affects 2.5 billion people worldwide. There are four dengue serotypes (DENV1 to DENV4), and infection with one elicits lifelong immunity to that serotype but offers only transient protection against the other serotypes. Identification of the protective determinants of the human antibody response to DENV is a vital requirement for the design and evaluation of future preventative therapies and treatments. Here, we describe the isolation of a neutralizing antibody from a DENV1-infected patient. The human antibody 14c10 (HM14c10) binds specifically to DENV1. HM14c10 neutralizes the virus principally by blocking virus attachment; at higher concentrations, a post-attachment step can also be inhibited. In vivo studies show that the HM14c10 antibody has antiviral activity at picomolar concentrations. A 7 A resolution cryoelectron microscopy map of Fab fragments of HM14c10 in a complex with DENV1 shows targeting of a discontinuous epitope that spans the adjacent surface of envelope protein dimers. As found previously, a human antibody specific for the related West Nile virus binds to a similar quaternary structure, suggesting that this could be an immunodominant epitope. These findings provide a structural and molecular context for durable, serotype-specific immunity to DENV infection.

The structural basis for serotype-specific neutralization of dengue virus by a human antibody.,Teoh EP, Kukkaro P, Teo EW, Lim AP, Tan TT, Yip A, Schul W, Aung M, Kostyuchenko VA, Leo YS, Chan SH, Smith KG, Chan AH, Zou G, Ooi EE, Kemeny DM, Tan GK, Ng JK, Ng ML, Alonso S, Fisher D, Shi PY, Hanson BJ, Lok SM, Macary PA Sci Transl Med. 2012 Jun 20;4(139):139ra83. PMID:22723463^[1]

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

References

↑ Teoh EP, Kukkaro P, Teo EW, Lim AP, Tan TT, Yip A, Schul W, Aung M, Kostyuchenko VA, Leo YS, Chan SH, Smith KG, Chan AH, Zou G, Ooi EE, Kemeny DM, Tan GK, Ng JK, Ng ML, Alonso S, Fisher D, Shi PY, Hanson BJ, Lok SM, Macary PA. The structural basis for serotype-specific neutralization of dengue virus by a human antibody. Sci Transl Med. 2012 Jun 20;4(139):139ra83. PMID:22723463 doi:10.1126/scitranslmed.3003888

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/3j05"

@@ Line 1: / Line 1: @@
 ==Three-dimensional structure of Dengue virus serotype 1 complexed with HMAb 14c10 Fab==
 <StructureSection load='3j05' size='340' side='right' caption='[[3j05]], [[Resolution|resolution]] 7.00&Aring;' scene=''>
 == Structural highlights ==
 <table><tr><td colspan='2'>[[3j05]] is a 3 chain structure with sequence from [http://en.wikipedia.org/wiki/Dengue_virus_1 Dengue virus 1]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=3J05 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=3J05 FirstGlance]. <br>
-</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=3j05 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3j05 OCA], [http://www.rcsb.org/pdb/explore.do?structureId=3j05 RCSB], [http://www.ebi.ac.uk/pdbsum/3j05 PDBsum]</span></td></tr>
+</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=3j05 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=3j05 OCA], [http://pdbe.org/3j05 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=3j05 RCSB], [http://www.ebi.ac.uk/pdbsum/3j05 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=3j05 ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 15: / Line 16: @@
 From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
 </div>
+<div class="pdbe-citations 3j05" style="background-color:#fffaf0;"></div>
 == References ==
 <references/>

3j05

From Proteopedia

Revision as of 18:45, 4 August 2016

Three-dimensional structure of Dengue virus serotype 1 complexed with HMAb 14c10 Fab

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

Views

Personal tools

Navigation

Search

Toolbox