ArticleNucleic acids research2022
Shelterin reduces the accessibility of telomeric overhangs.
Article in Nucleic acids research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
What it found
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The trial behind it
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Who cites it
8 citing papers in PubMed, 8 citations in OpenAlex.
- Accessibility of telomeric overhangs to stabilizing small-molecule ligands.Nucleic acids research · 2026Article
- Accessibility of Telomeric Overhangs to Stabilizing Small-Molecule Ligands.bioRxiv : the preprint server for biology · 2025Article
- Impact of Molecular Crowding on Accessibility of Telomeric Overhangs Forming Multiple G-Quadruplexes.Biomacromolecules · 2025Article
- Impact of Molecular Crowding on Accessibility of Telomeric Overhangs Forming Multiple G-quadruplexes.bioRxiv : the preprint server for biology · 2025Article
- Protection of the Telomeric Junction by the Shelterin Complex.Journal of the American Chemical Society · 2024Article
- Protection of the Telomeric Junction by the Shelterin Complex.bioRxiv : the preprint server for biology · 2024Article
- Structure, Topology, and Stability of Multiple G-quadruplexes in Long Telomeric Overhangs.Journal of molecular biology · 2024Review
- Detecting secondary structure formation with FRET-PAINT.The Analyst · 2023Article
Corrections and comments
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Authors and funding
10 authors at 3 institutions in 1 country.
Funding
Abstract
Telomeres terminate with a 50-300 bases long single-stranded G-rich overhang, which can be misrecognized as a DNA damage repair site. Shelterin plays critical roles in maintaining and protecting telomere ends by regulating access of various physiological agents to telomeric DNA, but the underlying mechanism is not well understood. Here, we measure how shelterin affects the accessibility of long telomeric overhangs by monitoring transient binding events of a short complementary peptide nucleic acid (PNA) probe using FRET-PAINT in vitro. We observed that the POT1 subunit of shelterin reduces the accessibility of the PNA probe by ∼2.5-fold, indicating that POT1 effectively binds to and protects otherwise exposed telomeric sequences. In comparison, a four-component shelterin stabilizes POT1 binding to the overhang by tethering POT1 to the double-stranded telomeric DNA and reduces the accessibility of telomeric overhangs by ∼5-fold. This enhanced protection suggests shelterin restructures the junction between single and double-stranded telomere, which is otherwise the most accessible part of the telomeric overhang.
Indexed as
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What OpenQuestion holds
Registered trials
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.