View source for 4yy9


==The structure of hemagglutinin from a H6N1 influenza virus (A/Taiwan/2/2013)==
<StructureSection load='4yy9' size='340' side='right'caption='[[4yy9]], [[Resolution|resolution]] 2.60&Aring;' scene=''>
== Structural highlights ==
<table><tr><td colspan='2'>[[4yy9]] is a 2 chain structure with sequence from [https://en.wikipedia.org/wiki/H6N1_subtype H6N1 subtype]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4YY9 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4YY9 FirstGlance]. <br>
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.601&#8491;</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='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4yy9 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4yy9 OCA], [https://pdbe.org/4yy9 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4yy9 RCSB], [https://www.ebi.ac.uk/pdbsum/4yy9 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4yy9 ProSAT]</span></td></tr>
</table>
== Function ==
[https://www.uniprot.org/uniprot/A0A0J9X268_9INFA A0A0J9X268_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.[SAAS:SAAS00842036]  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]

==See Also==
*[[Hemagglutinin 3D structures|Hemagglutinin 3D structures]]
__TOC__
</StructureSection>
[[Category: H6N1 subtype]]
[[Category: Large Structures]]
[[Category: Bi Y]]
[[Category: Gao GF]]
[[Category: Liu J]]
[[Category: Qi J]]
[[Category: Shi Y]]
[[Category: Wang F]]
[[Category: Wang M]]
[[Category: Yan J]]
[[Category: Zhang W]]