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  • Title: Enhancement of transcription of the SV40 genome in mouse embryo cells by pretreatment with 5-iodo-2'-deoxyuridine.
    Author: Suárez HG, Lange M, Cassingena R.
    Journal: J Gen Virol; 1981 Jan; 52(Pt 1):135-9. PubMed ID: 6267169.
    Abstract:
    Treatment of mouse embryo (ME) cells with 5-iodo-2'-deoxyuridine (IdUrd) before infection with SV40 virus, enhances T-antigen (T-Ag) production as detected by immunofluorescence and complement fixation. Cellular DNA and RNA synthesis are inhibited in both SV40 and mock-infected cells after IdUrd treatment. The analogue pretreatment significantly increases the amount of radiolabelled nuclear and cytoplasmic SV40-specific RNA and the RNA polymerase activity of the viral transcriptional complexes of the Sarkosyl supernatants, suggesting that the enhancement of SV40 T-Ag production in infected pretreated ME cells results from an increased synthesis of early virus RNA.
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