Pof8 is a La-related protein and a constitutive component of telomerase in fission yeast

Telomerase reverse transcriptase (TERT) and the non-coding telomerase RNA subunit (TR) constitute the core of telomerase. Here we now report that the putative F-box protein Pof8 is also a constitutive component of active telomerase in fission yeast. Pof8 functions in a hierarchical assembly pathway...

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Autores principales: Páez-Moscoso, Diego J., Pan, Lili, Sigauke, Rutendo F., Schroeder, Morgan R., Tang, Wen, Baumann, Peter
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
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Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5805746/
https://www.ncbi.nlm.nih.gov/pubmed/29422664
http://dx.doi.org/10.1038/s41467-017-02284-8
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author Páez-Moscoso, Diego J.
Pan, Lili
Sigauke, Rutendo F.
Schroeder, Morgan R.
Tang, Wen
Baumann, Peter
author_facet Páez-Moscoso, Diego J.
Pan, Lili
Sigauke, Rutendo F.
Schroeder, Morgan R.
Tang, Wen
Baumann, Peter
author_sort Páez-Moscoso, Diego J.
collection PubMed
description Telomerase reverse transcriptase (TERT) and the non-coding telomerase RNA subunit (TR) constitute the core of telomerase. Here we now report that the putative F-box protein Pof8 is also a constitutive component of active telomerase in fission yeast. Pof8 functions in a hierarchical assembly pathway by promoting the binding of the Lsm2-8 complex to telomerase RNA, which in turn promotes binding of the catalytic subunit. Loss of Pof8 reduces TER1 stability, causes a severe assembly defect, and results in critically short telomeres. Structure profile searches identified similarities between Pof8 and telomerase subunits from ciliated protozoa, making Pof8 next to TERT the most widely conserved telomerase subunits identified to date.
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spelling pubmed-58057462018-02-12 Pof8 is a La-related protein and a constitutive component of telomerase in fission yeast Páez-Moscoso, Diego J. Pan, Lili Sigauke, Rutendo F. Schroeder, Morgan R. Tang, Wen Baumann, Peter Nat Commun Article Telomerase reverse transcriptase (TERT) and the non-coding telomerase RNA subunit (TR) constitute the core of telomerase. Here we now report that the putative F-box protein Pof8 is also a constitutive component of active telomerase in fission yeast. Pof8 functions in a hierarchical assembly pathway by promoting the binding of the Lsm2-8 complex to telomerase RNA, which in turn promotes binding of the catalytic subunit. Loss of Pof8 reduces TER1 stability, causes a severe assembly defect, and results in critically short telomeres. Structure profile searches identified similarities between Pof8 and telomerase subunits from ciliated protozoa, making Pof8 next to TERT the most widely conserved telomerase subunits identified to date. Nature Publishing Group UK 2018-02-08 /pmc/articles/PMC5805746/ /pubmed/29422664 http://dx.doi.org/10.1038/s41467-017-02284-8 Text en © The Author(s) 2017 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Páez-Moscoso, Diego J.
Pan, Lili
Sigauke, Rutendo F.
Schroeder, Morgan R.
Tang, Wen
Baumann, Peter
Pof8 is a La-related protein and a constitutive component of telomerase in fission yeast
title Pof8 is a La-related protein and a constitutive component of telomerase in fission yeast
title_full Pof8 is a La-related protein and a constitutive component of telomerase in fission yeast
title_fullStr Pof8 is a La-related protein and a constitutive component of telomerase in fission yeast
title_full_unstemmed Pof8 is a La-related protein and a constitutive component of telomerase in fission yeast
title_short Pof8 is a La-related protein and a constitutive component of telomerase in fission yeast
title_sort pof8 is a la-related protein and a constitutive component of telomerase in fission yeast
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5805746/
https://www.ncbi.nlm.nih.gov/pubmed/29422664
http://dx.doi.org/10.1038/s41467-017-02284-8
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