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NMR assignments of the N-terminal domain of Ogataea polymorpha telomerase reverse transcriptase

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Abstract

Telomerase is a ribonucleoprotein enzyme that adds telomeric DNA fragments to the ends of chromosomes. This enzyme is the focus of substantial attention, both because its structure and mechanism of action are still poorly studied, and because of its pivotal roles in aging and cellular proliferation. The use of telomerase as a potential target for the design of new anticancer drugs is also of great interest. The catalytic protein subunit of telomerase (TERT) contains an N-terminal domain (TEN) that is essential for activity and processivity. Elucidation of the structure and dynamics of TEN in solution is important for understanding the molecular mechanism of telomerase activity and for the design of new telomerase inhibitors. To approach this problem, in this study we report the 1H, 13C, and 15N chemical shift assignments of TEN from Ogataea polymorpha. Analysis of the assigned chemical shifts allowed us to identify secondary structures and protein regions potentially involved in interaction with other participants of the telomerase catalytic cycle.

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Abbreviations

IPTG:

Isopropyl-thio-β-d-galactoside

TEN:

Telomerase N-terminal domain

TER:

Telomerase RNA

TERT:

Telomerase reverse transcriptase subunit

TEV:

Tobacco Etch Virus nuclear-inclusion-a endopeptidase

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Acknowledgments

The Russian Science Foundation (Grant 14-14-00598) supported NMR studies. Russian Foundation for Basic Research (Grant 15-54-74005 EMBL_a) supported protein cloning, expression and purification. The authors are grateful for the opportunity to use the NMR facilities acquired with the support from the Russian Government Program of Competitive Growth of Kazan Federal University among World’s Leading Academic Centers.

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Authors and Affiliations

  1. Center for Magnetic Tomography and Spectroscopy, Faculty of Fundamental Medicine, M.V. Lomonosov Moscow State University, Moscow, Russia, 119991

    Vladimir I. Polshakov

  2. A.N. Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia, 119992

    Olga A. Petrova & Olga A. Dontsova

  3. Department of Chemistry, M.V. Lomonosov Moscow State University, Moscow, Russia, 119991

    Yulia Yu. Parfenova, Maria I. Zvereva & Olga A. Dontsova

  4. NMR Laboratory, Institute of Physics, Kazan Federal University, 18 Kremlevskaya, Kazan, Russia, 420008

    Sergey V. Efimov & Vladimir V. Klochkov

Authors
  1. Vladimir I. Polshakov
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  2. Olga A. Petrova
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  3. Yulia Yu. Parfenova
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  4. Sergey V. Efimov
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  5. Vladimir V. Klochkov
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  6. Maria I. Zvereva
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  7. Olga A. Dontsova
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Correspondence to Vladimir I. Polshakov.

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Polshakov, V.I., Petrova, O.A., Parfenova, Y.Y. et al. NMR assignments of the N-terminal domain of Ogataea polymorpha telomerase reverse transcriptase. Biomol NMR Assign 10, 183–187 (2016). https://doi.org/10.1007/s12104-015-9663-6

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  • DOI: https://doi.org/10.1007/s12104-015-9663-6

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