Abstract
The region of the simian virus 40 genome complementary to the 5' end of the most abundant poly(A)-containing 19S and 16S mRNAs was mapped by hybridization of double-labeled RNA ([3H]methyl group and [14C]uridine) to specific DNA fragments. Chemical identification of methylated residues indicated that a common "leader" sequence adjacent to the 5' terminus of both 19S and 16S mRNA is transcribed from DNA sequences located between 0.67 and 0.76 map units. The estimated size of this "leader" RNA, which does not code for any known viral protein, is 170-200 nucleotides. Our results indicate that sequences complementary to the "leader" region and coding portion of 16S mRNA are located in separate parts of the simian virus 40 genome.
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- Aloni Y., Dhar R., Laub O., Horowitz M., Khoury G. Novel mechanism for RNA maturation: the leader sequences of simian virus 40 mRNA are not transcribed adjacent to the coding sequences. Proc Natl Acad Sci U S A. 1977 Sep;74(9):3686–3690. doi: 10.1073/pnas.74.9.3686. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Aloni Y. Methylated SV40 mRNAs. FEBS Lett. 1975 Jul 1;54(3):363–367. doi: 10.1016/0014-5793(75)80940-9. [DOI] [PubMed] [Google Scholar]
- Berget S. M., Moore C., Sharp P. A. Spliced segments at the 5' terminus of adenovirus 2 late mRNA. Proc Natl Acad Sci U S A. 1977 Aug;74(8):3171–3175. doi: 10.1073/pnas.74.8.3171. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Botchan M., Topp W., Sambrook J. The arrangement of simian virus 40 sequences in the DNA of transformed cells. Cell. 1976 Oct;9(2):269–287. doi: 10.1016/0092-8674(76)90118-5. [DOI] [PubMed] [Google Scholar]
- Canaani D., Revel M., Groner Y. Translational discrimination of 'capped' and 'non-capped' mRNAS: inhibition of a series of chemical analogs of m7GpppX. FEBS Lett. 1976 May 1;64(2):326–331. doi: 10.1016/0014-5793(76)80321-3. [DOI] [PubMed] [Google Scholar]
- Chow L. T., Gelinas R. E., Broker T. R., Roberts R. J. An amazing sequence arrangement at the 5' ends of adenovirus 2 messenger RNA. Cell. 1977 Sep;12(1):1–8. doi: 10.1016/0092-8674(77)90180-5. [DOI] [PubMed] [Google Scholar]
- Khoury G., Carter B. J., Ferdinand F. J., Howley P. M., Brown M., Martin M. A. Genome localization of simian virus 40 RNA species. J Virol. 1976 Mar;17(3):832–840. doi: 10.1128/jvi.17.3.832-840.1976. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Klessig D. F. Two adenovirus mRNAs have a common 5' terminal leader sequence encoded at least 10 kb upstream from their main coding regions. Cell. 1977 Sep;12(1):9–21. doi: 10.1016/0092-8674(77)90181-7. [DOI] [PubMed] [Google Scholar]
- Lavi S., Shatkin A. J. Methylated simian virus 40-specific RNA from nuclei and cytoplasm of infected BSC-1 cells. Proc Natl Acad Sci U S A. 1975 Jun;72(6):2012–2016. doi: 10.1073/pnas.72.6.2012. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Lodish H. F. Translational control of protein synthesis. Annu Rev Biochem. 1976;45:39–72. doi: 10.1146/annurev.bi.45.070176.000351. [DOI] [PubMed] [Google Scholar]
- May E., Maizel J. V., Salzman N. P. Mapping of transcription sites of simian virus 40-specific late 16S and 19S mRNA by electron microscopy. Proc Natl Acad Sci U S A. 1977 Feb;74(2):496–500. doi: 10.1073/pnas.74.2.496. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Rozenblatt S., Mulligan R. C., Gorecki M., Roberts B. E., Rich A. Direct biochemical mapping of eukaryotic viral DNA by means of a linked transcription-translation cell-free system. Proc Natl Acad Sci U S A. 1976 Aug;73(8):2747–2751. doi: 10.1073/pnas.73.8.2747. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Shatkin A. J. Capping of eucaryotic mRNAs. Cell. 1976 Dec;9(4 Pt 2):645–653. doi: 10.1016/0092-8674(76)90128-8. [DOI] [PubMed] [Google Scholar]
- Shen C. K., Hearst J. E. Mapping of sequences with 2-fold symmetry on the simian virus 40 genome: a photochemical crosslinking approach. Proc Natl Acad Sci U S A. 1977 Apr;74(4):1363–1367. doi: 10.1073/pnas.74.4.1363. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Weinberg R. A., Warnaar S. O., Winocour E. Isolation and characterization of simian virus 40 ribonucleic acid. J Virol. 1972 Aug;10(2):193–201. doi: 10.1128/jvi.10.2.193-201.1972. [DOI] [PMC free article] [PubMed] [Google Scholar]