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8gv6

From Proteopedia

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Current revision

Crystal structure of PN-SIA28 in complex with influenza hemagglutinin H14 (A/long-tailed duck/Wisconsin/10OS3912/2010)

Structural highlights

8gv6 is a 10 chain structure with sequence from Homo sapiens and Influenza A virus (A/long-tailed duck/Wisconsin/10OS3912/2010(H14N6)). Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance.
Method:	X-ray diffraction, Resolution 3.4Å
Ligands:
Resources:	FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT

Function

G5DSS3_9INFA Binds to sialic acid-containing receptors on the cell surface, bringing about the attachment of the virus particle to the cell. This attachment induces virion internalization either through clathrin-dependent endocytosis or through clathrin- and caveolin-independent pathway. Plays a major role in the determination of host range restriction and virulence. Class I viral fusion protein. Responsible for penetration of the virus into the cell cytoplasm by mediating the fusion of the membrane of the endocytosed virus particle with the endosomal membrane. Low pH in endosomes induces an irreversible conformational change in HA2, releasing the fusion hydrophobic peptide. Several trimers are required to form a competent fusion pore.[HAMAP-Rule:MF_04072] Binds to sialic acid-containing receptors on the cell surface, bringing about the attachment of the virus particle to the cell. This attachment induces virion internalization of about two third of the virus particles through clathrin-dependent endocytosis and about one third through a clathrin- and caveolin-independent pathway. Plays a major role in the determination of host range restriction and virulence. Class I viral fusion protein. Responsible for penetration of the virus into the cell cytoplasm by mediating the fusion of the membrane of the endocytosed virus particle with the endosomal membrane. Low pH in endosomes induces an irreversible conformational change in HA2, releasing the fusion hydrophobic peptide. Several trimers are required to form a competent fusion pore.[RuleBase:RU003324]

Publication Abstract from PubMed

Influenza infection continues are a persistent threat to public health. The identification and characterization of human broadly neutralizing antibodies can facilitate the development of antibody drugs and the design of universal influenza vaccines. Here, we present structural information for the human antibody PN-SIA28's heterosubtypic binding of hemagglutinin (HA) from circulating and emerging potential influenza A viruses (IAVs). Aside from group 1 and 2 conventional IAV HAs, PN-SIA28 also inhibits membrane fusion mediated by bat-origin H17 and H18 HAs. Crystallographic analyses of Fab alone or in complex with H1, H14, and H18 HA proteins reveal that PN-SIA28 binds to a highly conserved epitope in the fusion domain of different HAs, with the same CDRHs but different CDRLs for different HAs tested, distinguishing it from other structurally characterized anti-stem antibodies. The binding characteristics of PN-SIA28 provides information to support the design of increasingly potent engineered antibodies, antiviral drugs, and/or universal influenza vaccines.

Structural basis for a human broadly neutralizing influenza A hemagglutinin stem-specific antibody including H17/18 subtypes.,Chen Y, Wang F, Yin L, Jiang H, Lu X, Bi Y, Zhang W, Shi Y, Burioni R, Tong Z, Song H, Qi J, Gao GF Nat Commun. 2022 Dec 9;13(1):7603. doi: 10.1038/s41467-022-35236-y. PMID:36494358^[1]

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

References

↑ Chen Y, Wang F, Yin L, Jiang H, Lu X, Bi Y, Zhang W, Shi Y, Burioni R, Tong Z, Song H, Qi J, Gao GF. Structural basis for a human broadly neutralizing influenza A hemagglutinin stem-specific antibody including H17/18 subtypes. Nat Commun. 2022 Dec 9;13(1):7603. doi: 10.1038/s41467-022-35236-y. PMID:36494358 doi:http://dx.doi.org/10.1038/s41467-022-35236-y

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

Proteopedia Page Contributors and Editors (what is this?)

OCA

Retrieved from "http://52.214.119.220/wiki/index.php/8gv6"

@@ Line 4: / Line 4: @@
 == Structural highlights ==
 <table><tr><td colspan='2'>[[8gv6]] is a 10 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Influenza_A_virus_(A/long-tailed_duck/Wisconsin/10OS3912/2010(H14N6)) Influenza A virus (A/long-tailed duck/Wisconsin/10OS3912/2010(H14N6))]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=8GV6 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=8GV6 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]] 3.4&#8491;</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=8gv6 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=8gv6 OCA], [https://pdbe.org/8gv6 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=8gv6 RCSB], [https://www.ebi.ac.uk/pdbsum/8gv6 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=8gv6 ProSAT]</span></td></tr>
 </table>
@@ Line 18: / Line 19: @@
 </div>
 <div class="pdbe-citations 8gv6" style="background-color:#fffaf0;"></div>
+==See Also==
+*[[Hemagglutinin 3D structures|Hemagglutinin 3D structures]]
 == References ==
 <references/>

8gv6

From Proteopedia

Current revision

Crystal structure of PN-SIA28 in complex with influenza hemagglutinin H14 (A/long-tailed duck/Wisconsin/10OS3912/2010)

Structural highlights

Function

Publication Abstract from PubMed

See Also

References

Contents

Proteopedia Page Contributors and Editors (what is this?)

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