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==Structure of the parainfluenza virus 5 (PIV5) hemagglutinin-neuraminidase (HN) ectodomain==
==Structure of the parainfluenza virus 5 (PIV5) hemagglutinin-neuraminidase (HN) ectodomain==
<StructureSection load='4jf7' size='340' side='right' caption='[[4jf7]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
<StructureSection load='4jf7' size='340' side='right'caption='[[4jf7]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[4jf7]] is a 4 chain structure with sequence from [http://en.wikipedia.org/wiki/Sv5 Sv5]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4JF7 OCA]. For a <b>guided tour on the structure components</b> use [http://oca.weizmann.ac.il/oca-docs/fgij/fg.htm?mol=4JF7 FirstGlance]. <br>
<table><tr><td colspan='2'>[[4jf7]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Simian_virus_5_(strain_W3) Simian virus 5 (strain W3)]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=4JF7 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=4JF7 FirstGlance]. <br>
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</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]] 2.5018&#8491;</td></tr>
<tr id='gene'><td class="sblockLbl"><b>[[Gene|Gene:]]</b></td><td class="sblockDat">HN ([http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Info&srchmode=5&id=11208 SV5])</td></tr>
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=CA:CALCIUM+ION'>CA</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene>, <scene name='pdbligand=SO4:SULFATE+ION'>SO4</scene></td></tr>
<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>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=4jf7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4jf7 OCA], [https://pdbe.org/4jf7 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=4jf7 RCSB], [https://www.ebi.ac.uk/pdbsum/4jf7 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=4jf7 ProSAT]</span></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=4jf7 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=4jf7 OCA], [http://pdbe.org/4jf7 PDBe], [http://www.rcsb.org/pdb/explore.do?structureId=4jf7 RCSB], [http://www.ebi.ac.uk/pdbsum/4jf7 PDBsum], [http://prosat.h-its.org/prosat/prosatexe?pdbcode=4jf7 ProSAT]</span></td></tr>
</table>
</table>
== Function ==
== Function ==
[[http://www.uniprot.org/uniprot/HN_SV5 HN_SV5]] Attaches the virus to sialic acid-containing cell receptors and thereby initiating infection. Binding of HN protein to the receptor induces a conformational change that allows the F protein to trigger virion/cell membranes fusion (By similarity).  Neuraminidase activity ensures the efficient spread of the virus by dissociating the mature virions from the neuraminic acid containing glycoproteins (By similarity).  
[https://www.uniprot.org/uniprot/HN_PIV5 HN_PIV5] Attaches the virus to sialic acid-containing cell receptors and thereby initiating infection. Binding of HN protein to the receptor induces a conformational change that allows the F protein to trigger virion/cell membranes fusion (By similarity).  Neuraminidase activity ensures the efficient spread of the virus by dissociating the mature virions from the neuraminic acid containing glycoproteins.
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== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
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==See Also==
==See Also==
*[[Hemagglutinin|Hemagglutinin]]
*[[Hemagglutinin 3D structures|Hemagglutinin 3D structures]]
== References ==
== References ==
<references/>
<references/>
__TOC__
__TOC__
</StructureSection>
</StructureSection>
[[Category: Exo-alpha-sialidase]]
[[Category: Large Structures]]
[[Category: Sv5]]
[[Category: Bose S]]
[[Category: Bose, S]]
[[Category: Jardetzky TS]]
[[Category: Jardetzky, T S]]
[[Category: Kors CA]]
[[Category: Kors, C A]]
[[Category: Lamb RA]]
[[Category: Lamb, R A]]
[[Category: Welch BD]]
[[Category: Welch, B D]]
[[Category: Yuan P]]
[[Category: Yuan, P]]
[[Category: Attachment protein]]
[[Category: Ectodomain]]
[[Category: Hn]]
[[Category: Paramyxovirus]]
[[Category: Piv5]]
[[Category: Receptor binding protein]]
[[Category: Viral protein]]

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