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  • Title: In vitro synthesis of adenovirus type 5 T antigens. II. Translation of virus-specific RNA from cells transformed by fragments of adenovirus type 5 DNA.
    Author: Jochemsen H, Hertoghs JJ, Lupker JH, Davis A, van der Eb AJ.
    Journal: J Virol; 1981 Jan; 37(1):530-4. PubMed ID: 7218431.
    Abstract:
    Virus-specific cytoplasmic RNA was isolated from rat cell lines transformed by fragments of adenovirus type 5 DNA, and the RNAs were translated in cell-free systems derived from wheat germ or rabbit reticulocytes. RNA was isolated from cell lines transformed by the following fragments: XhoI-C (leftmost 15.5%), HindIII-G (leftmost 8%), and HpaI-E (leftmost 4.5%). In addition, the adenovirus type 5-transformed human embryonic kidney line 293.C31 was investigated. The products were immunoprecipitated with serum from tumor-bearing hamsters and analyzed by electrophoresis in sodium dodecyl sulfate-polyacrylamide gels. The results show that all transformed cells investigated contain early region 1a-specific RNAs which can be translated into proteins with molecular weights of 34,000 (34K), 36K, 40K, and 42K. Transformed cells that also contain an intact early region 1b synthesized RNA which can be translated into proteins with molecular weights of 19K and 65K. Minor proteins of 15K, 16K, 17.5K, 18K, 25K, and 29K were also observed, but these proteins could not be mapped unambiguously. Cells transformed by the 8% HindIII-G apparently lack RNA encoding the 65K protein, but they do contain RNA coding for the 19K protein.
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