Isolation and Preliminary Characterization of the RNA-Containing R-Type, Virus-Like Particle of BHK-21 Cells
- 1 November 1973
- journal article
- Published by American Society for Microbiology in Journal of Virology
- Vol. 12 (5), 1164-1172
- https://doi.org/10.1128/jvi.12.5.1164-1172.1973
Abstract
An R-type virus-like particle (VLP) has been isolated from the medium of BHK-21-F cells by ultracentrifugation and polyethylene glycol precipitation. The R-type VLP contains RNA which sediments at 60 to 70S in sucrose density gradients and has a molecular weight of approximately 107, as estimated by gel electrophoresis. The R-type VLP can be labeled with 3H-uridine in the presence of actinomycin D. On the basis of morphology, site of maturation, and preliminary biochemical characterization, the R-type VLP does not appear to fit into any of the major groups of animal viruses.Keywords
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