Visualization of membrane protein domains by cryo-electron microscopy of dengue virusZhang, W., Chipman, P.R., Corver, J., Johnson, P.R., Zhang, Y., Mukhopadhyay, S., Baker, T.S., Strauss, J.H., Rossmann, M.G., Kuhn, R.J.
(2003) Nat.Struct.Mol.Biol. 10: 907-912
- PubMed: 14528291
- DOI: 10.1038/nsb990
- Also Cited By: 1THD
- PubMed Abstract:
- Adding the third dimension to virus life cycles: three-dimensional reconstruction of icosahedral viruses from cryo-electron micrographs
Baker, T.S.,Olson, N.H.,Fuller, S.D.
(1999) Microbiol.Mol.Biol.Rev. 63: 862
- Structure of Dengue Virus: Implications for Flaviviruses Organization, Maturation and Fusion
Kuhn, R.J.,Zhang, W.,Rossmann, M.G.,Pletnev, S.V.,Corver, J.,Lenches, E.,Jones, C.T.,Mukhopadhyay, S.,Chipman, P.R.,Strauss, E.G.,Baker, T.S.,Strauss, J.H.
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- The envelope glycoprotein from tick-borne encephalitis virus at 2 A resolution
Rey, F.A.,Heinz, F.X.,Mandl, C.,Kunz, C.,Harrison, S.C.
(1995) Nature 375: 291
Improved technology for reconstructing cryo-electron microscopy (cryo-EM) images has now made it possible to determine secondary structural features of membrane proteins in enveloped viruses. The structure of mature dengue virus particles was determi ...
Improved technology for reconstructing cryo-electron microscopy (cryo-EM) images has now made it possible to determine secondary structural features of membrane proteins in enveloped viruses. The structure of mature dengue virus particles was determined to a resolution of 9.5 A by cryo-EM and image reconstruction techniques, establishing the secondary structural disposition of the 180 envelope (E) and 180 membrane (M) proteins in the lipid envelope. The alpha-helical 'stem' regions of the E molecules, as well as part of the N-terminal section of the M proteins, are buried in the outer leaflet of the viral membrane. The 'anchor' regions of E and the M proteins each form antiparallel E-E and M-M transmembrane alpha-helices, leaving their C termini on the exterior of the viral membrane, consistent with the predicted topology of the unprocessed polyprotein. This is one of only a few determinations of the disposition of transmembrane proteins in situ and shows that the nucleocapsid core and envelope proteins do not have a direct interaction in the mature virus.
Department of Biological Sciences, Lilly Hall, 915 W. State Street, Purdue University, West Lafayette, Indiana 47907, USA.