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4d8s

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==Influenza NA in complex with antiviral compound==
==Influenza NA in complex with antiviral compound==
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<StructureSection load='4d8s' size='340' side='right' caption='[[4d8s]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
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<StructureSection load='4d8s' size='340' side='right'caption='[[4d8s]], [[Resolution|resolution]] 2.40&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
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<table><tr><td colspan='2'>[[4d8s]] is a 1 chain structure with sequence from [http://en.wikipedia.org/wiki/I63a3 I63a3]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4D8S OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4D8S FirstGlance]. <br>
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<table><tr><td colspan='2'>[[4d8s]] is a 1 chain structure with sequence from [https://en.wikipedia.org/wiki/Influenza_A_virus_(A/duck/Ukraine/1/1963(H3N8)) Influenza A virus (A/duck/Ukraine/1/1963(H3N8))]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4D8S OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4D8S FirstGlance]. <br>
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</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=0HX:PENTAN-3-YL+2-(ACETYLAMINO)-2,4-DIDEOXY-ALPHA-L-THREO-HEX-4-ENOPYRANOSIDURONIC+ACID'>0HX</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
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</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.398&#8491;</td></tr>
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<tr id='activity'><td class="sblockLbl"><b>Activity:</b></td><td class="sblockDat"><span class='plainlinks'>[http://en.wikipedia.org/wiki/Exo-alpha-sialidase Exo-alpha-sialidase], with EC number [http://www.brenda-enzymes.info/php/result_flat.php4?ecno=3.2.1.18 3.2.1.18] </span></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=0HX:PENTAN-3-YL+2-(ACETYLAMINO)-2,4-DIDEOXY-ALPHA-L-THREO-HEX-4-ENOPYRANOSIDURONIC+ACID'>0HX</scene>, <scene name='pdbligand=CA:CALCIUM+ION'>CA</scene></td></tr>
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<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=4d8s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4d8s OCA], [http://www.rcsb.org/pdb/explore.do?structureId=4d8s RCSB], [http://www.ebi.ac.uk/pdbsum/4d8s PDBsum]</span></td></tr>
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<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4d8s FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4d8s OCA], [https://pdbe.org/4d8s PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4d8s RCSB], [https://www.ebi.ac.uk/pdbsum/4d8s PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4d8s ProSAT]</span></td></tr>
</table>
</table>
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== Function ==
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[https://www.uniprot.org/uniprot/NRAM_I63A3 NRAM_I63A3] Catalyzes the removal of terminal sialic acid residues from viral and cellular glycoconjugates. Cleaves off the terminal sialic acids on the glycosylated HA during virus budding to facilitate virus release. Additionally helps virus spread through the circulation by further removing sialic acids from the cell surface. These cleavages prevent self-aggregation and ensure the efficient spread of the progeny virus from cell to cell. Otherwise, infection would be limited to one round of replication. Described as a receptor-destroying enzyme because it cleaves a terminal sialic acid from the cellular receptors. May facilitate viral invasion of the upper airways by cleaving the sialic acid moities on the mucin of the airway epithelial cells. Likely to plays a role in the budding process through its association with lipid rafts during intracellular transport. May additionally display a raft-association independent effect on budding. Plays a role in the determination of host range restriction on replication and virulence. Sialidase activity in late endosome/lysosome traffic seems to enhance virus replication.
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
</div>
</div>
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<div class="pdbe-citations 4d8s" style="background-color:#fffaf0;"></div>
==See Also==
==See Also==
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*[[Neuraminidase|Neuraminidase]]
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*[[Neuraminidase 3D structures|Neuraminidase 3D structures]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
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[[Category: Exo-alpha-sialidase]]
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[[Category: Large Structures]]
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[[Category: I63a3]]
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[[Category: Kerry PS]]
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[[Category: Kerry, P S]]
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[[Category: Russell RJMR]]
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[[Category: Russell, R J.M R]]
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[[Category: Hydrolase]]
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[[Category: Neuraminidase]]
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Current revision

Influenza NA in complex with antiviral compound

PDB ID 4d8s

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