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-Structure paper
Title | Conformational changes of the flavivirus E glycoprotein. |
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Journal, issue, pages | Structure, Vol. 12, Issue 9, Page 1607-1618, Year 2004 |
Publish date | May 16, 2005 |
Authors | Ying Zhang / Wei Zhang / Steven Ogata / David Clements / James H Strauss / Timothy S Baker / Richard J Kuhn / Michael G Rossmann / |
PubMed Abstract | Dengue virus, a member of the Flaviviridae family, has a surface composed of 180 copies each of the envelope (E) glycoprotein and the membrane (M) protein. The crystal structure of an N-terminal ...Dengue virus, a member of the Flaviviridae family, has a surface composed of 180 copies each of the envelope (E) glycoprotein and the membrane (M) protein. The crystal structure of an N-terminal fragment of E has been determined and compared with a previously described structure. The primary difference between these structures is a 10 degrees rotation about a hinge relating the fusion domain DII to domains DI and DIII. These two rigid body components were used for independent fitting of E into the cryo-electron microscopy maps of both immature and mature dengue viruses. The fitted E structures in these two particles showed a difference of 27 degrees between the two components. Comparison of the E structure in its postfusion state with that in the immature and mature virions shows a rotation approximately around the same hinge. Flexibility of E is apparently a functional requirement for assembly and infection of flaviviruses. |
External links | Structure / PubMed:15341726 / PubMed Central |
Methods | EM (single particle) / X-ray diffraction |
Resolution | 2.61 - 12.5 Å |
Structure data | EMDB-5422: cryo-EM reconstruction of immature dengue virus PDB-1tg8: PDB-1thd: |
Chemicals | ChemComp-NDG: ChemComp-HOH: |
Source |
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Keywords | VIRAL PROTEIN / Flavivirus E conformation / VIRUS / flavivirus / dengue immature virus / prM particle / Icosahedral virus / FLAVIVIRIDAE / DENGUE VIRUS / GLYCOPROTEIN E / CRYO-EM |