MacLellan, K. and Loney, C and Yeo, R. P. and Bhella, D. (2007) 'The 24-angstrom structure of respiratory syncytial virus nucleocapsid protein-RNA decameric rings.', Journal of virology., 81 (17). pp. 9519-9524.
Respiratory syncytial virus (RSV), a nonsegmented, negative-sense RNA-containing virus, is a common cause of lower respiratory tract disease. Expression of RSV nucleocapsid protein (N) in insect cells using the baculovirus expression system leads to the formation of N-RNA complexes that are morphologically indistinguishable from viral nucleocapsids. When imaged in an electron microscope, three distinct types of structures were observed: tightly wound short-pitch helices, highly extended helices, and rings. Negative stain images of N-RNA rings were used to calculate a three-dimensional reconstruction at 24 A resolution, revealing features similar to those observed in nucleocapsids from other viruses of the order Mononegavirales. The reconstructed N-RNA rings comprise 10 N monomers and have an external radius of 83 A and an internal radius of 40 A. Comparison of this structure with crystallographic data from rabies virus and vesicular stomatitis virus N-RNA rings reveals striking morphological similarities.
|Keywords:||Mononegavirales, Nucleocapsid, Structure.|
|Full text:||Full text not available from this repository.|
|Publisher Web site:||http://dx.doi.org/10.1128/JVI.00526-07|
|Record Created:||19 Jun 2009 10:20|
|Last Modified:||24 Jun 2009 14:24|
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