Evidence map›Paper›PMID 34535663›Full record

ArticleNature communications2021

Distinct functions of POT1 proteins contribute to the regulation of telomerase recruitment to telomeres.

Peili Gu, Shuting Jia, Taylor Takasugi, Valerie M Tesmer, Jayakrishnan Nandakumar, Yong Chen, Sandy Chang

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed
3.2field-weighted citation impact, top 7% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

30 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
  2. Translational Geroscience Strategies for Delaying Multimorbidity.ACS pharmacology & translational science · 2026
    Review
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  5. Article
  6. Whole exome sequencing identified two novel mutations ofFrontiers in cell and developmental biology · 2026
    Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Telomere maintenance and the DNA damage response: a paradoxical alliance.Frontiers in cell and developmental biology · 2024
    Article
  15. Article
  16. The Altered Functions of Shelterin Components in ALT Cells.International journal of molecular sciences · 2023
    Review
  17. Article
  18. Article
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 2 countries.

Peili GuDepartment of Laboratory Medicine, Yale University School of Medicine, New Haven, CT, 06520, USA.
Shuting JiaLaboratory of Molecular Genetics of Aging and Tumor, School of Medicine, Kunming University Science and Technology, Kunming, 650500, China.
Taylor TakasugiDepartment of Laboratory Medicine, Yale University School of Medicine, New Haven, CT, 06520, USA.ORCID 0000-0002-7099-2346
Valerie M TesmerDepartment of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, 48109, USA.
Jayakrishnan NandakumarDepartment of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, 48109, USA.ORCID 0000-0001-9146-2785
Yong ChenState Key Laboratory of Molecular Biology, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, 200031, China.ORCID 0000-0001-5857-6086
Sandy ChangDepartment of Laboratory Medicine, Yale University School of Medicine, New Haven, CT, 06520, USA. schang@yale.edu.ORCID 0000-0002-9560-1671
Yale University · USUniversity of Michigan · USChinese Academy of Sciences · CNKunming University · CN

Funding

Molecular functions of the shelterin component ACD/TPP1 in somatic stem cells and tissue homeostasisR01AG050509 · NIA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI KEEGAN, CATHERINE ELIZABETH, MAILLARD, IVAN · 2015 to 2019
$2.3M
Telomere dysfunction induced breast cancer pathogenesisR01CA202816 · NCI · YALE UNIVERSITY · PI CHANG, SANDY S · 2016 to 2020
$1.9M
Telomeric Protein Function and RegulationR01GM120094 · NIGMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI NANDAKUMAR, JAYAKRISHNAN · 2016 to 2020
$1.5M
Role of POT1 in telomere length regulationR01GM141350 · NIGMS · YALE UNIVERSITY · PI CHANG, SANDY S · 2022 to 2024
$1.0M
NCI NIH HHS R01 CA202816NIA NIH HHS R01 AG050509NIGMS NIH HHS R01 GM120094NIGMS NIH HHS R01 GM141350
6 · The paper itself

Abstract

Human shelterin components POT1 and TPP1 form a stable heterodimer that protects telomere ends from ATR-dependent DNA damage responses and regulates telomerase-dependent telomere extension. Mice possess two functionally distinct POT1 proteins. POT1a represses ATR/CHK1 DNA damage responses and the alternative non-homologous end-joining DNA repair pathway while POT1b regulates C-strand resection and recruits the CTC1-STN1-TEN1 (CST) complex to telomeres to mediate C-strand fill-in synthesis. Whether POT1a and POT1b are involved in regulating the length of the telomeric G-strand is unclear. Here we demonstrate that POT1b, independent of its CST function, enhances recruitment of telomerase to telomeres through three amino acids in its TPP1 interacting C-terminus. POT1b thus coordinates the synthesis of both telomeric G- and C-strands. In contrast, POT1a negatively regulates telomere length by inhibiting telomerase recruitment to telomeres. The identification of unique amino acids between POT1a and POT1b helps us understand mechanistically how human POT1 switches between end protective functions and promoting telomerase recruitment.

Indexed as

AnimalsCRISPR-Cas SystemsDNA-Binding ProteinsDNA Mutational AnalysisMiceProtein BindingRad51 RecombinaseSarcomaTelomeraseTelomereTelomere-Binding ProteinsAcd protein, mouseDNA-Binding ProteinsPOT1b protein, mouseRad51 RecombinaseTelomeraseTelomere-Binding Proteins

Identifiers

PMID34535663
PMCPMC8448735
OpenAlexW3200489748

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.