@article{mbs:/content/journal/jgv/10.1099/0022-1317-51-2-341, author = "Zaslavsky, V. and Marquardt, O. and Wong, T.-K. and Hofschneider, P. H.", title = "Hepatitis B Virus (HBV)-specific Structures found in Cytoplasmic Extracts of Cells producing HBV Surface Antigen (HBsAg) in vitro", journal= "Journal of General Virology", year = "1980", volume = "51", number = "2", pages = "341-349", doi = "https://doi.org/10.1099/0022-1317-51-2-341", url = "https://www.microbiologyresearch.org/content/journal/jgv/10.1099/0022-1317-51-2-341", publisher = "Microbiology Society", issn = "1465-2099", type = "Journal Article", abstract = "SUMMARY Two kinds of hepatitis B virus-specific particles are present in cytoplasmic extracts of hepatoma cells synthesizing hepatitis B virus (HBV) surface antigen. One class of particle contains the surface antigen of the virus, is 20S in size and has a buoyant density (in CsCl) of 1.2 g/ml. The second class of particle is a deoxyribonucleoprotein (DNP) with 1.3 g/ml buoyant density (in CsCl) and is 30S in size, the DNA of which contains HBV sequences thus proving virus specificity.", }