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-Structure paper
タイトル | Conformational changes of the flavivirus E glycoprotein. |
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ジャーナル・号・ページ | Structure, Vol. 12, Issue 9, Page 1607-1618, Year 2004 |
掲載日 | 2005年5月16日 |
著者 | Ying Zhang / Wei Zhang / Steven Ogata / David Clements / James H Strauss / Timothy S Baker / Richard J Kuhn / Michael G Rossmann / |
PubMed 要旨 | 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. |
リンク | Structure / PubMed:15341726 / PubMed Central |
手法 | EM (単粒子) / X線回折 |
解像度 | 2.61 - 12.5 Å |
構造データ | EMDB-5422: cryo-EM reconstruction of immature dengue virus PDB-1tg8: PDB-1thd: |
化合物 | ChemComp-NDG: ChemComp-HOH: |
由来 |
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キーワード | VIRAL PROTEIN / Flavivirus E conformation / VIRUS / flavivirus / dengue immature virus / prM particle / Icosahedral virus / FLAVIVIRIDAE / DENGUE VIRUS / GLYCOPROTEIN E / CRYO-EM |