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. 1994 Oct 11;91(21):9847–9851. doi: 10.1073/pnas.91.21.9847

The primer tRNA sequence is not inherited during Ty1 retrotransposition.

V Lauermann 1, J D Boeke 1
PMCID: PMC44914  PMID: 7937903

Abstract

Yeast retrotransposon Ty1 transposes through an RNA intermediate by a mechanism resembling retroviral replication. Long terminal repeat retroelements require primers for initiation of reverse transcription. The primer for minus-strand DNA synthesis is the 3' end of a cellular tRNA that base pairs to the complementary region of genomic RNA (the primer binding site). The genomic RNA of retroviruses and retrotransposons is shorter than its proviral DNA counterpart, lacking complete long terminal repeats. A variety of models have been proposed to describe how complete long terminal repeats are regenerated during reverse transcription. A common feature of these models is the requirement that the 3' portion of the primer tRNA be reverse-transcribed and then utilized in a strand-transfer reaction. We introduced a silent mutation into the Ty1 primer binding site and followed its fate during a single cycle of reverse transcription to directly test this aspect of the reverse transcription model. We demonstrate that the tRNA sequence is not inherited by progeny Ty1 elements during reverse transcription.

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Selected References

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

  1. Berwin B., Barklis E. Retrovirus-mediated insertion of expressed and non-expressed genes at identical chromosomal locations. Nucleic Acids Res. 1993 May 25;21(10):2399–2407. doi: 10.1093/nar/21.10.2399. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Bishop D. K., Andersen J., Kolodner R. D. Specificity of mismatch repair following transformation of Saccharomyces cerevisiae with heteroduplex plasmid DNA. Proc Natl Acad Sci U S A. 1989 May;86(10):3713–3717. doi: 10.1073/pnas.86.10.3713. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. 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]
  4. Chapman K. B., Byström A. S., Boeke J. D. Initiator methionine tRNA is essential for Ty1 transposition in yeast. Proc Natl Acad Sci U S A. 1992 Apr 15;89(8):3236–3240. doi: 10.1073/pnas.89.8.3236. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Charneau P., Alizon M., Clavel F. A second origin of DNA plus-strand synthesis is required for optimal human immunodeficiency virus replication. J Virol. 1992 May;66(5):2814–2820. doi: 10.1128/jvi.66.5.2814-2820.1992. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Eichinger D. J., Boeke J. D. The DNA intermediate in yeast Ty1 element transposition copurifies with virus-like particles: cell-free Ty1 transposition. Cell. 1988 Sep 23;54(7):955–966. doi: 10.1016/0092-8674(88)90110-9. [DOI] [PubMed] [Google Scholar]
  7. Gabriel A., Boeke J. D. Reverse transcriptase encoded by a retrotransposon from the trypanosomatid Crithidia fasciculata. Proc Natl Acad Sci U S A. 1991 Nov 1;88(21):9794–9798. doi: 10.1073/pnas.88.21.9794. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. 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]
  9. Gilboa E., Mitra S. W., Goff S., Baltimore D. A detailed model of reverse transcription and tests of crucial aspects. Cell. 1979 Sep;18(1):93–100. doi: 10.1016/0092-8674(79)90357-x. [DOI] [PubMed] [Google Scholar]
  10. Hu W. S., Temin H. M. Retroviral recombination and reverse transcription. Science. 1990 Nov 30;250(4985):1227–1233. doi: 10.1126/science.1700865. [DOI] [PubMed] [Google Scholar]
  11. Kunkel T. A. Rapid and efficient site-specific mutagenesis without phenotypic selection. Proc Natl Acad Sci U S A. 1985 Jan;82(2):488–492. doi: 10.1073/pnas.82.2.488. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. 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]
  13. Paquin C. E., Williamson V. M. Temperature effects on the rate of ty transposition. Science. 1984 Oct 5;226(4670):53–55. doi: 10.1126/science.226.4670.53. [DOI] [PubMed] [Google Scholar]
  14. Peliska J. A., Benkovic S. J. Mechanism of DNA strand transfer reactions catalyzed by HIV-1 reverse transcriptase. Science. 1992 Nov 13;258(5085):1112–1118. doi: 10.1126/science.1279806. [DOI] [PubMed] [Google Scholar]
  15. Pochart P., Agoutin B., Rousset S., Chanet R., Doroszkiewicz V., Heyman T. Biochemical and electron microscope analyses of the DNA reverse transcripts present in the virus-like particles of the yeast transposon Ty1. Identification of a second origin of Ty1DNA plus strand synthesis. Nucleic Acids Res. 1993 Jul 25;21(15):3513–3520. doi: 10.1093/nar/21.15.3513. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Rhim H., Park J., Morrow C. D. Deletions in the tRNA(Lys) primer-binding site of human immunodeficiency virus type 1 identify essential regions for reverse transcription. J Virol. 1991 Sep;65(9):4555–4564. doi: 10.1128/jvi.65.9.4555-4564.1991. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Taylor J. M., Hsu T. W., Yeater C., Mason W. S. Synthesis and integration of avian sarcoma virus DNA. Cold Spring Harb Symp Quant Biol. 1980;44(Pt 2):1091–1096. doi: 10.1101/sqb.1980.044.01.117. [DOI] [PubMed] [Google Scholar]
  18. Temin H. M. Retrovirus variation and reverse transcription: abnormal strand transfers result in retrovirus genetic variation. Proc Natl Acad Sci U S A. 1993 Aug 1;90(15):6900–6903. doi: 10.1073/pnas.90.15.6900. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. Winston F., Durbin K. J., Fink G. R. The SPT3 gene is required for normal transcription of Ty elements in S. cerevisiae. Cell. 1984 Dec;39(3 Pt 2):675–682. doi: 10.1016/0092-8674(84)90474-4. [DOI] [PubMed] [Google Scholar]
  20. Xu H., Boeke J. D. High-frequency deletion between homologous sequences during retrotransposition of Ty elements in Saccharomyces cerevisiae. Proc Natl Acad Sci U S A. 1987 Dec;84(23):8553–8557. doi: 10.1073/pnas.84.23.8553. [DOI] [PMC free article] [PubMed] [Google Scholar]

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