5voc

From Proteopedia

(Difference between revisions)

Revision as of 08:42, 30 September 2020

Crystal structure of HCMV Pentamer in complex with neutralizing antibody 8I21 - Low resolution dataset for initial phasing by SAD

Structural highlights

5voc is a 7 chain structure with sequence from Hcmv8, Hcmva, Hcmvm and Human. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Ligands:	,
Related:	5vob, 5vod
Gene:	gH, UL75 (HCMVM), gL, UL115 (HCMV8), UL128 (HCMVA), UL130 (HCMVM), UL131A (HCMVM), IGKV3-15 (HUMAN)
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

[GL_HCMV8] The heterodimer glycoprotein H-glycoprotein L is required for the fusion of viral and plasma membranes leading to virus entry into the host cell. Acts as a functional inhibitor of gH and maintains gH in an inhibited form. Upon binding to host integrins, gL dissociates from gH leading to activation of the viral fusion glycoproteins gB and gH. [GH_HCMVM] The heterodimer glycoprotein H-glycoprotein L is required for the fusion of viral and plasma membranes leading to virus entry into the host cell. Following initial binding to host receptor, membrane fusion is mediated by the fusion machinery composed 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. [U131A_HCMVM] Plays an essential role in endothelial cell entry and release steps. Contributes to the formation of the complex between UL128, UL130 and gH-gL.^[1] ^[2]

Publication Abstract from PubMed

Human cytomegalovirus (HCMV) is the leading viral cause of birth defects and organ transplant rejection. The HCMV gH/gL/UL128/UL130/UL131A complex (Pentamer) is the main target of humoral responses and thus a key vaccine candidate. We report two structures of Pentamer bound to human neutralizing antibodies, 8I21 and 9I6, at 3.0 and 5.9 A resolution, respectively. The HCMV gH/gL architecture is similar to that of Epstein-Barr virus (EBV) except for amino-terminal extensions on both subunits. The extension of gL forms a subdomain composed of a three-helix bundle and a beta hairpin that acts as a docking site for UL128/UL130/UL131A. Structural analysis reveals that Pentamer is a flexible molecule, and suggests sites for engineering stabilizing mutations. We also identify immunogenic surfaces important for cellular interactions by epitope mapping and functional assays. These results can guide the development of effective vaccines and immunotherapeutics against HCMV.

Structural basis for potent antibody-mediated neutralization of human cytomegalovirus.,Chandramouli S, Malito E, Nguyen T, Luisi K, Donnarumma D, Xing Y, Norais N, Yu D, Carfi A Sci Immunol. 2017 Jun 30;2(12). pii: eaan1457. doi: 10.1126/sciimmunol.aan1457. PMID:28783665^[3]

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

References

↑ Adler B, Scrivano L, Ruzcics Z, Rupp B, Sinzger C, Koszinowski U. Role of human cytomegalovirus UL131A in cell type-specific virus entry and release. J Gen Virol. 2006 Sep;87(Pt 9):2451-60. PMID:16894182 doi:http://dx.doi.org/10.1099/vir.0.81921-0
↑ Schuessler A, Sampaio KL, Straschewski S, Sinzger C. Mutational mapping of pUL131A of human cytomegalovirus emphasizes its central role for endothelial cell tropism. J Virol. 2012 Jan;86(1):504-12. doi: 10.1128/JVI.05354-11. Epub 2011 Oct 26. PMID:22031943 doi:http://dx.doi.org/10.1128/JVI.05354-11
↑ Chandramouli S, Malito E, Nguyen T, Luisi K, Donnarumma D, Xing Y, Norais N, Yu D, Carfi A. Structural basis for potent antibody-mediated neutralization of human cytomegalovirus. Sci Immunol. 2017 Jun 30;2(12). pii: eaan1457. doi: 10.1126/sciimmunol.aan1457. PMID:28783665 doi:http://dx.doi.org/10.1126/sciimmunol.aan1457

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/5voc"

@@ Line 1: / Line 1: @@
 ==Crystal structure of HCMV Pentamer in complex with neutralizing antibody 8I21 - Low resolution dataset for initial phasing by SAD==
-<StructureSection load='5voc' size='340' side='right' caption='[[5voc]], [[Resolution|resolution]] 3.99&Aring;' scene=''>
+<StructureSection load='5voc' size='340' side='right'caption='[[5voc]], [[Resolution|resolution]] 3.99&Aring;' scene=''>
 == Structural highlights ==
-<table><tr><td colspan='2'>[[5voc]] is a 7 chain structure. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5VOC OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=5VOC FirstGlance]. <br>
+<table><tr><td colspan='2'>[[5voc]] is a 7 chain structure with sequence from [http://en.wikipedia.org/wiki/Hcmv8 Hcmv8], [http://en.wikipedia.org/wiki/Hcmva Hcmva], [http://en.wikipedia.org/wiki/Hcmvm Hcmvm] and [http://en.wikipedia.org/wiki/Human Human]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=5VOC OCA]. For a <b>guided tour on the structure components</b> use [http://proteopedia.org/fgij/fg.htm?mol=5VOC FirstGlance]. <br>
-</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
+</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
 <tr id='related'><td class="sblockLbl"><b>[[Related_structure|Related:]]</b></td><td class="sblockDat">[[5vob|5vob]], [[5vod|5vod]]</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=5voc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5voc OCA], [http://pdbe.org/5voc PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5voc RCSB], [http://www.ebi.ac.uk/pdbsum/5voc PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5voc ProSAT]</span></td></tr>
+<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">gH, UL75 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=295027 HCMVM]), gL, UL115 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=69168 HCMV8]), UL128 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=10360 HCMVA]), UL130 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=295027 HCMVM]), UL131A ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=295027 HCMVM]), IGKV3-15 ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=9606 HUMAN])</td></tr>
+<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[http://proteopedia.org/fgij/fg.htm?mol=5voc FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=5voc OCA], [http://pdbe.org/5voc PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=5voc RCSB], [http://www.ebi.ac.uk/pdbsum/5voc PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=5voc ProSAT]</span></td></tr>
 </table>
 == Function ==
@@ Line 23: / Line 24: @@
 __TOC__
 </StructureSection>
+[[Category: Hcmv8]]
+[[Category: Hcmva]]
+[[Category: Hcmvm]]
+[[Category: Human]]
+[[Category: Large Structures]]
 [[Category: Chandramouli, S]]
 [[Category: Malito, E]]

5voc

From Proteopedia

Revision as of 08:42, 30 September 2020

Crystal structure of HCMV Pentamer in complex with neutralizing antibody 8I21 - Low resolution dataset for initial phasing by SAD

Structural highlights

Function

Publication Abstract from PubMed

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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