Abstract
The Ty element of yeast is a member of a class of eukaryotic transposons which bear a striking resemblance to retroviral proviruses in their structure and expression strategies (1,2). A direct comparison can be drawn between the production of a fusion protein encoded by Ty, resulting from a frameshift event which fuses two out-of-phase open reading frames TYA and TYB, and the production of Pr180gag-pol in a retrovirus such as Rous Sarcoma Virus (RSV) (3,4). We present data which shows, definitively, that RNA splicing is not responsible for the frameshift in Ty. By in vitro mutation of a class I element, Ty1-15, we demonstrate that 31 nucleotides contained within the region where the TYA and TYB open reading frames overlap direct the frameshift. Within this short sequence there is a region of homology with a class II element which we show is also able to frameshift.
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- Beggs J. D. Transformation of yeast by a replicating hybrid plasmid. Nature. 1978 Sep 14;275(5676):104–109. doi: 10.1038/275104a0. [DOI] [PubMed] [Google Scholar]
- Boeke J. D., Garfinkel D. J., Styles C. A., Fink G. R. Ty elements transpose through an RNA intermediate. Cell. 1985 Mar;40(3):491–500. doi: 10.1016/0092-8674(85)90197-7. [DOI] [PubMed] [Google Scholar]
- Bowen B. A., Fulton A. M., Tuite M. F., Kingsman S. M., Kingsman A. J. Expression of Ty-lacZ fusions in Saccharomyces cerevisiae. Nucleic Acids Res. 1984 Feb 10;12(3):1627–1640. doi: 10.1093/nar/12.3.1627. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Chinault A. C., Carbon J. Overlap hybridization screening: isolation and characterization of overlapping DNA fragments surrounding the leu2 gene on yeast chromosome III. Gene. 1979 Feb;5(2):111–126. doi: 10.1016/0378-1119(79)90097-0. [DOI] [PubMed] [Google Scholar]
- Clare J., Farabaugh P. Nucleotide sequence of a yeast Ty element: evidence for an unusual mechanism of gene expression. Proc Natl Acad Sci U S A. 1985 May;82(9):2829–2833. doi: 10.1073/pnas.82.9.2829. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Dobson M. J., Mellor J., Fulton A. M., Roberts N. A., Bowen B. A., Kingsman S. M., Kingsman A. J. The identification and high level expression of a protein encoded by the yeast Ty element. EMBO J. 1984 May;3(5):1115–1119. doi: 10.1002/j.1460-2075.1984.tb01938.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Elder R. T., Loh E. Y., Davis R. W. RNA from the yeast transposable element Ty1 has both ends in the direct repeats, a structure similar to retrovirus RNA. Proc Natl Acad Sci U S A. 1983 May;80(9):2432–2436. doi: 10.1073/pnas.80.9.2432. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Finnegan D. J. Transposable elements in eukaryotes. Int Rev Cytol. 1985;93:281–326. doi: 10.1016/s0074-7696(08)61376-5. [DOI] [PubMed] [Google Scholar]
- Fulton A. M., Mellor J., Dobson M. J., Chester J., Warmington J. R., Indge K. J., Oliver S. G., de la Paz P., Wilson W., Kingsman A. J. Variants within the yeast Ty sequence family encode a class of structurally conserved proteins. Nucleic Acids Res. 1985 Jun 11;13(11):4097–4112. doi: 10.1093/nar/13.11.4097. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Garfinkel D. J., Boeke J. D., Fink G. R. Ty element transposition: reverse transcriptase and virus-like particles. Cell. 1985 Sep;42(2):507–517. doi: 10.1016/0092-8674(85)90108-4. [DOI] [PubMed] [Google Scholar]
- Hauber J., Nelböck-Hochstetter P., Feldmann H. Nucleotide sequence and characteristics of a Ty element from yeast. Nucleic Acids Res. 1985 Apr 25;13(8):2745–2758. doi: 10.1093/nar/13.8.2745. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hawthorne D C, Mortimer R K. Chromosome Mapping in Saccharomyces: Centromere-Linked Genes. Genetics. 1960 Aug;45(8):1085–1110. doi: 10.1093/genetics/45.8.1085. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hinnen A., Hicks J. B., Fink G. R. Transformation of yeast. Proc Natl Acad Sci U S A. 1978 Apr;75(4):1929–1933. doi: 10.1073/pnas.75.4.1929. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Holmes D. S., Quigley M. A rapid boiling method for the preparation of bacterial plasmids. Anal Biochem. 1981 Jun;114(1):193–197. doi: 10.1016/0003-2697(81)90473-5. [DOI] [PubMed] [Google Scholar]
- Jacks T., Varmus H. E. Expression of the Rous sarcoma virus pol gene by ribosomal frameshifting. Science. 1985 Dec 13;230(4731):1237–1242. doi: 10.1126/science.2416054. [DOI] [PubMed] [Google Scholar]
- Kingsman A. J., Gimlich R. L., Clarke L., Chinault A. C., Carbon J. Sequence variation in dispersed repetitive sequences in Saccharomyces cerevisiae. J Mol Biol. 1981 Feb 5;145(4):619–632. doi: 10.1016/0022-2836(81)90306-5. [DOI] [PubMed] [Google Scholar]
- Laemmli U. K. Cleavage of structural proteins during the assembly of the head of bacteriophage T4. Nature. 1970 Aug 15;227(5259):680–685. doi: 10.1038/227680a0. [DOI] [PubMed] [Google Scholar]
- Langford C. J., Klinz F. J., Donath C., Gallwitz D. Point mutations identify the conserved, intron-contained TACTAAC box as an essential splicing signal sequence in yeast. Cell. 1984 Mar;36(3):645–653. doi: 10.1016/0092-8674(84)90344-1. [DOI] [PubMed] [Google Scholar]
- Mellor J., Dobson M. J., Roberts N. A., Kingsman A. J., Kingsman S. M. Factors affecting heterologous gene expression in Saccharomyces cerevisiae. Gene. 1985;33(2):215–226. doi: 10.1016/0378-1119(85)90096-4. [DOI] [PubMed] [Google Scholar]
- Mellor J., Dobson M. J., Roberts N. A., Tuite M. F., Emtage J. S., White S., Lowe P. A., Patel T., Kingsman A. J., Kingsman S. M. Efficient synthesis of enzymatically active calf chymosin in Saccharomyces cerevisiae. Gene. 1983 Sep;24(1):1–14. doi: 10.1016/0378-1119(83)90126-9. [DOI] [PubMed] [Google Scholar]
- Mellor J., Fulton A. M., Dobson M. J., Roberts N. A., Wilson W., Kingsman A. J., Kingsman S. M. The Ty transposon of Saccharomyces cerevisiae determines the synthesis of at least three proteins. Nucleic Acids Res. 1985 Sep 11;13(17):6249–6263. doi: 10.1093/nar/13.17.6249. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Mellor J., Fulton S. M., Dobson M. J., Wilson W., Kingsman S. M., Kingsman A. J. A retrovirus-like strategy for expression of a fusion protein encoded by yeast transposon Ty1. Nature. 1985 Jan 17;313(5999):243–246. doi: 10.1038/313243a0. [DOI] [PubMed] [Google Scholar]
- Mellor J., Malim M. H., Gull K., Tuite M. F., McCready S., Dibbayawan T., Kingsman S. M., Kingsman A. J. Reverse transcriptase activity and Ty RNA are associated with virus-like particles in yeast. Nature. 1985 Dec 12;318(6046):583–586. doi: 10.1038/318583a0. [DOI] [PubMed] [Google Scholar]
- Melton D. A., Krieg P. A., Rebagliati M. R., Maniatis T., Zinn K., Green M. R. Efficient in vitro synthesis of biologically active RNA and RNA hybridization probes from plasmids containing a bacteriophage SP6 promoter. Nucleic Acids Res. 1984 Sep 25;12(18):7035–7056. doi: 10.1093/nar/12.18.7035. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Rigby P. W., Dieckmann M., Rhodes C., Berg P. Labeling deoxyribonucleic acid to high specific activity in vitro by nick translation with DNA polymerase I. J Mol Biol. 1977 Jun 15;113(1):237–251. doi: 10.1016/0022-2836(77)90052-3. [DOI] [PubMed] [Google Scholar]
- Sanger F., Nicklen S., Coulson A. R. DNA sequencing with chain-terminating inhibitors. Proc Natl Acad Sci U S A. 1977 Dec;74(12):5463–5467. doi: 10.1073/pnas.74.12.5463. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Schwartz D. E., Tizard R., Gilbert W. Nucleotide sequence of Rous sarcoma virus. Cell. 1983 Mar;32(3):853–869. doi: 10.1016/0092-8674(83)90071-5. [DOI] [PubMed] [Google Scholar]
- Southern E. M. Detection of specific sequences among DNA fragments separated by gel electrophoresis. J Mol Biol. 1975 Nov 5;98(3):503–517. doi: 10.1016/s0022-2836(75)80083-0. [DOI] [PubMed] [Google Scholar]
- Tabak H. F., Flavell R. A. A method for the recovery of DNA from agarose gels. Nucleic Acids Res. 1978 Jul;5(7):2321–2332. doi: 10.1093/nar/5.7.2321. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Teem J. L., Rosbash M. Expression of a beta-galactosidase gene containing the ribosomal protein 51 intron is sensitive to the rna2 mutation of yeast. Proc Natl Acad Sci U S A. 1983 Jul;80(14):4403–4407. doi: 10.1073/pnas.80.14.4403. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Thomas P. S. Hybridization of denatured RNA and small DNA fragments transferred to nitrocellulose. Proc Natl Acad Sci U S A. 1980 Sep;77(9):5201–5205. doi: 10.1073/pnas.77.9.5201. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Tuite M. F., Dobson M. J., Roberts N. A., King R. M., Burke D. C., Kingsman S. M., Kingsman A. J. Regulated high efficiency expression of human interferon-alpha in Saccharomyces cerevisiae. EMBO J. 1982;1(5):603–608. doi: 10.1002/j.1460-2075.1982.tb01215.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Warmington J. R., Waring R. B., Newlon C. S., Indge K. J., Oliver S. G. Nucleotide sequence characterization of Ty 1-17, a class II transposon from yeast. Nucleic Acids Res. 1985 Sep 25;13(18):6679–6693. doi: 10.1093/nar/13.18.6679. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Yoshinaka Y., Katoh I., Copeland T. D., Oroszlan S. Murine leukemia virus protease is encoded by the gag-pol gene and is synthesized through suppression of an amber termination codon. Proc Natl Acad Sci U S A. 1985 Mar;82(6):1618–1622. doi: 10.1073/pnas.82.6.1618. [DOI] [PMC free article] [PubMed] [Google Scholar]