1z4y: Difference between revisions

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[[Image:1z4y.gif|left|200px]]
{{Seed}}
[[Image:1z4y.png|left|200px]]


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{{STRUCTURE_1z4y|  PDB=1z4y  |  SCENE=  }}  
{{STRUCTURE_1z4y|  PDB=1z4y  |  SCENE=  }}  


'''Parainfluenza Virus 5 (SV5) Hemagglutinin-Neuraminidase (HN) (pH 8.0)'''
===Parainfluenza Virus 5 (SV5) Hemagglutinin-Neuraminidase (HN) (pH 8.0)===




==Overview==
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The paramyxovirus hemagglutinin-neuraminidase (HN) functions in virus attachment to cells, cleavage of sialic acid from oligosaccharides, and stimulating membrane fusion during virus entry into cells. The structural basis for these diverse functions remains to be fully understood. We report the crystal structures of the parainfluenza virus 5 (SV5) HN and its complexes with sialic acid, the inhibitor DANA, and the receptor sialyllactose. SV5 HN shares common structural features with HN of Newcastle disease virus (NDV) and human parainfluenza 3 (HPIV3), but unlike the previously determined HN structures, the SV5 HN forms a tetramer in solution, which is thought to be the physiological oligomer. The sialyllactose complex reveals intact receptor within the active site, but no major conformational changes in the protein. The SV5 HN structures do not support previously proposed models for HN action in membrane fusion and suggest alternative mechanisms by which HN may promote virus entry into cells.
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{{ABSTRACT_PUBMED_15893670}}


==About this Structure==
==About this Structure==
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[[Category: Yuan, P.]]
[[Category: Yuan, P.]]
[[Category: Hemagglutinin,neuraminidase,fusion,tetramer]]
[[Category: Hemagglutinin,neuraminidase,fusion,tetramer]]
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Sat May  3 17:10:59 2008''
 
''Page seeded by [http://oca.weizmann.ac.il/oca OCA ] on Mon Jul 28 03:08:24 2008''

Revision as of 00:08, 28 July 2008

File:1z4y.png

Template:STRUCTURE 1z4y

Parainfluenza Virus 5 (SV5) Hemagglutinin-Neuraminidase (HN) (pH 8.0)

Template:ABSTRACT PUBMED 15893670

About this Structure

1Z4Y is a Single protein structure of sequence from Simian virus 5. Full crystallographic information is available from OCA.

Reference

Structural studies of the parainfluenza virus 5 hemagglutinin-neuraminidase tetramer in complex with its receptor, sialyllactose., Yuan P, Thompson TB, Wurzburg BA, Paterson RG, Lamb RA, Jardetzky TS, Structure. 2005 May;13(5):803-15. PMID:15893670

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