3c6r

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{{STRUCTURE_3c6r| PDB=3c6r | SCENE= }}
{{STRUCTURE_3c6r| PDB=3c6r | SCENE= }}
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'''Low pH Immature Dengue Virus'''
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===Low pH Immature Dengue Virus===
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==Overview==
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Intracellular cleavage of immature flaviviruses is a critical step in assembly that generates the membrane fusion potential of the E glycoprotein. With cryo-electron microscopy we show that the immature dengue particles undergo a reversible conformational change at low pH that renders them accessible to furin cleavage. At a pH of 6.0, the E proteins are arranged in a herringbone pattern with the pr peptides docked onto the fusion loops, a configuration similar to that of the mature virion. After cleavage, the dissociation of pr is pH-dependent, suggesting that in the acidic environment of the trans-Golgi network pr is retained on the virion to prevent membrane fusion. These results suggest a mechanism by which flaviviruses are processed and stabilized in the host cell secretory pathway.
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{{ABSTRACT_PUBMED_18369148}}
==About this Structure==
==About this Structure==
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[[Category: Virion]]
[[Category: Virion]]
[[Category: Virus]]
[[Category: Virus]]
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Revision as of 05:11, 28 July 2008

Image:3c6r.png

Template:STRUCTURE 3c6r

Low pH Immature Dengue Virus

Template:ABSTRACT PUBMED 18369148

About this Structure

3C6R is a Protein complex structure of sequences from Dengue virus 2. Full crystallographic information is available from OCA.

Reference

Structure of the immature dengue virus at low pH primes proteolytic maturation., Yu IM, Zhang W, Holdaway HA, Li L, Kostyuchenko VA, Chipman PR, Kuhn RJ, Rossmann MG, Chen J, Science. 2008 Mar 28;319(5871):1834-7. PMID:18369148

Page seeded by OCA on Mon Jul 28 08:11:24 2008

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