| Literature DB >> 226975 |
M A Israel, D T Simmons, S L Hourihan, W P Rowe, M A Martin.
Abstract
The tumorigenicity of DNA from polyoma virus after cleavage with a variety of restriction enzymes was evaluated in suckling hamsters. Cleavage with enzymes that interrupt the region of the genome coding for the large tumor (T) antigen of polyoma virus markedly enhanced the tumorigenicity above that observed with DNA I of the virus. Cell lines established in vitro from tumors induced by polyoma virions, polyoma virus DNA I, or polyoma virus DNA that had been cleaved with restriction endonucleases in the early region all contain the polyoma virus middle and small T antigens but not the large T antigen of polyoma virus is not required for maintenance of the transformed state and probably not for initiation of tumorigenesis by viral DNA.Entities:
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Year: 1979 PMID: 226975 PMCID: PMC383903 DOI: 10.1073/pnas.76.8.3713
Source DB: PubMed Journal: Proc Natl Acad Sci U S A ISSN: 0027-8424 Impact factor: 11.205