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Mutation in TERT separates processivity from anchor-site function

Abstract

Telomerase shows repeat-addition processivity (RAP): synthesis of multiple telomeric DNA repeats without primer dissociation. Leu14 mutants in the telomerase essential N-terminal domain of Tetrahymena thermophila telomerase reverse transcriptase retain full activity and anchor-site function but lose RAP, suggesting models for how this domain facilitates DNA translocation.

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Figure 1: Leu14 mutants of Tetrahymena TERT have a specific defect in RAP.
Figure 2: L14A mutation does not disrupt the anchor site.
Figure 3: Model.

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References

  1. Lingner, J. et al. Science 276, 561–567 (1997).

    Article  CAS  PubMed  Google Scholar 

  2. Greider, C.W. Mol. Cell. Biol. 11, 4572–4580 (1991).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  3. Hammond, P.W., Lively, T.N. & Cech, T.R. Mol. Cell. Biol. 17, 296–308 (1997).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  4. Lue, N.F. & Li, Z. Nucleic Acids Res. 35, 5213–5222 (2007).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  5. Jacobs, S.A., Podell, E.R. & Cech, T.R. Nat. Struct. Mol. Biol. 13, 218–225 (2006).

    Article  CAS  PubMed  Google Scholar 

  6. Romi, E. et al. Proc. Natl. Acad. Sci. USA 104, 8791–8796 (2007).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  7. Moriarty, T.J., Marie-Egyptienne, D.T. & Autexier, C. Mol. Cell. Biol. 24, 3720–3733 (2004).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  8. Finger, S.N. & Bryan, T.M. Nucleic Acids Res. 36, 1260–1272 (2008).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  9. Wyatt, H.D., Lobb, D.A. & Beattie, T.L. Mol. Cell. Biol. 27, 3226–3240 (2007).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  10. Miller, M.C., Liu, J.K. & Collins, K. EMBO J. 19, 4412–4422 (2000).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  11. Bar-Nahum, G. et al. Cell 120, 183–193 (2005).

    Article  CAS  PubMed  Google Scholar 

  12. Lai, C.K., Miller, M.C. & Collins, K. Mol. Cell 11, 1673–1683 (2003).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  13. Mason, D.X., Goneska, E. & Greider, C.W. Mol. Cell. Biol. 23, 5606–5613 (2003).

    Article  CAS  PubMed  PubMed Central  Google Scholar 

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Acknowledgements

We thank K. Collins, N. Lue and A. Berman for useful discussions.

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Authors and Affiliations

Authors

Contributions

A.J.Z. made the initial discovery and designed and carried out experiments; E.R.P. contributed to data analysis and interpretation; T.R.C. contributed to experimental design and models.

Corresponding authors

Correspondence to Arthur J Zaug or Thomas R Cech.

Supplementary information

Supplementary Text and Figures

Supplementary Figures 1–6, Supplementary Methods and Supplementary Discussion (PDF 1581 kb)

Supplementary Movie

Leu14 (shown as the branched amino acid) acts as a latch between the TEN domain and the remainder of telomerase, opening and closing during the reaction cycle. See Figure 3 in the main text for details. (MOV 9167 kb)

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Zaug, A., Podell, E. & Cech, T. Mutation in TERT separates processivity from anchor-site function. Nat Struct Mol Biol 15, 870–872 (2008). https://doi.org/10.1038/nsmb.1462

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