Abstract:
:We have constructed a recombinant pBR322 plasmid composed of a subgenomic transforming fragment of bovine papillomavirus DNA and the hepatitis B surface antigen gene from cloned hepatitis B virus DNA and used it for transfection of NIH 3T3 mouse fibroblasts. The transformed cells retain the plasmids in extrachromosomal form with a copy number of about 50 to 100 per cell. Expression of the hepatitis B surface antigen gene linked to bovine papillomavirus DNA is independent of its orientation relative to the bovine papillomavirus vector. Cell lines continuously secreting high amounts of hepatitis B surface antigen into the medium could be established. The antigen is released into the culture medium as 22-nm particles, having the same physical properties and constituent polypeptides as those found in the serum of hepatitis B virus-infected patients.
journal_name
Mol Cell Bioljournal_title
Molecular and cellular biologyauthors
Wang Y,Stratowa C,Schaefer-Ridder M,Doehmer J,Hofschneider PHdoi
10.1128/mcb.3.6.1032subject
Has Abstractpub_date
1983-06-01 00:00:00pages
1032-9issue
6eissn
0270-7306issn
1098-5549journal_volume
3pub_type
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