Conformational changes of the flavivirus e glycoproteinZhang, Y., Zhang, W., Ogata, S., Clements, D., Strauss, J.H., Baker, T.S., Kuhn, R.J., Rossmann, M.G.
(2004) Structure 12: 1607-1618
- PubMed: 15341726
- DOI: 10.1016/j.str.2004.06.019
- Primary Citation of Related Structures:
- PubMed Abstract:
- Visualization of membrane protein domains by cryo-electron microscopy of dengue virus
ZHANG, 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
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 p ...
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.
Department of Biological Sciences, Lilly Hall, 915 West State Street, Purdue University, West Lafayette, IN 47907, USA.