High-resolution cryo-electron microscopy structures of murine norovirus 1 and rabbit hemorrhagic disease virus reveal marked flexibility in the receptor binding domains.
J Virol
; 84(11): 5836-41, 2010 Jun.
Article
em En
| MEDLINE
| ID: mdl-20335264
ABSTRACT
Our previous structural studies on intact, infectious murine norovirus 1 (MNV-1) virions demonstrated that the receptor binding protruding (P) domains are lifted off the inner shell of the virus. Here, the three-dimensional (3D) reconstructions of recombinant rabbit hemorrhagic disease virus (rRHDV) virus-like particles (VLPs) and intact MNV-1 were determined to approximately 8-A resolution. rRHDV also has a raised P domain, and therefore, this conformation is independent of infectivity and genus. The atomic structure of the MNV-1 P domain was used to interpret the MNV-1 reconstruction. Connections between the P and shell domains and between the floating P domains were modeled. This observed P-domain flexibility likely facilitates virus-host receptor interactions.
Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Receptores Virais
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Vírus da Doença Hemorrágica de Coelhos
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Microscopia Crioeletrônica
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Norovirus
Idioma:
En
Ano de publicação:
2010
Tipo de documento:
Article