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J Virol. 1980 February; 33(2): 697-707

Distinct transformation phenotypes induced by polyoma virus and simian virus 40 in rat fibroblasts and their control by an early viral gene function.

ABSTRACT

Several transformed cell lines established from Fisher rat cells (FR 3T3) infected with wild-type polyoma virus or simian virus 40 or early temperature-sensitive mutants (polyoma tsa and simian virus 40 tsA30) were studied for their transformation phenotypes. The distinct patterns which were obtained for polyoma and simian virus 40 transformants led to the conclusion that these two viruses express different transforming abilities in rat cells. The results obtained with temperature-sensitive mutant-derived transformants indicate that all of the transformation characteristics studied so far may be under the control of a viral function in polyoma tsa-transformed cells.