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. 1983 Jul;47(1):55–64. doi: 10.1128/jvi.47.1.55-64.1983

Regulation of polyoma virus transcription in murine embryonal carcinoma cells.

L Dandolo, D Blangy, R Kamen
PMCID: PMC255198  PMID: 6306281

Abstract

Undifferentiated murine embryonal carcinoma (EC) cells are resistant to infection with wild-type polyoma virus. The block appears to be located at the transcriptional level. Polyoma host range mutants capable of expressing early and late functions in EC cells have been isolated. The modifications responsible for the phenotype of these mutants are localized in the noncoding region of polyoma DNA genome, containing regulatory sequences for replication and transcription. We compared the 5' termini of early and late mRNAs of wild-type polyoma and mutant viruses in EC cells and in permissive cells. Our results show that wild-type mRNA is normally spliced in EC cells but present at a very low level. The sequence modifications of the mutant viruses lead to a 100-fold increase in the production of mRNA in these cells, but the major 5' termini of early and late mRNAs are identical to those in wild-type-infected 3T6 cells.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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