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TFIIH moonlighting at telomeres

Publications associées (32)

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Telomeres are nucleoprotein structures present in the end of linear chromosomes. In humans, a core complex of 6 proteins cap and protect the chromosome ends from being recognized as double-strand breaks and eliciting unwanted DNA damage and repair response ...

EPFL2019

Telomere dysfunction can unleash genome instability or permanently arrest cell proliferation, and thereby contribute to the processes of cancer and aging. Proper telomere function relies on many proteins that form part of its structure. Some telomeric prot ...

EPFL2018

TRF2-Mediated Control of Telomere DNA Topology as a Mechanism for Chromosome-End Protection

Eric Aeby, Jing Ye, Bei Pei

The shelterin proteins protect telomeres against activation of the DNA damage checkpoints and recombinational repair. We show here that a dimer of the shelterin subunit TRF2 wraps similar to 90 bp of DNA through several lysine and arginine residues localiz ...

Cell Press2016

No DDRama at chromosome ends: TRF2 takes centre stage

Antonio Porro, Liuh-Yow Chen, Sascha Feuerhahn

Telomeres are nucleoprotein structures capping the natural termini of eukaryotic linear chromosomes. Telomeres possess an inherent ability to circumvent the activation of a full-blown DNA damage response (DDR), and hence fusion reactions, by limiting inapp ...

Elsevier Science London2015

Telomere functions grounding on TERRA firma

Joachim Lingner

Long noncoding telomeric repeat-containing RNAs TERRAs - are transcribed in a regulated manner from telomeres throughout eukaryotes. TERRA molecules consist of chromosome end-specific subtelomeric sequences and telomeric repeats at their 3' ends. Recent wo ...

Elsevier Science London2015

Molecular basis of telomere syndrome caused by CTC1 mutations

Joachim Lingner, Jana Majerská, Liuh-Yow Chen

Mutations in CTC1 lead to the telomere syndromes Coats Plus and dyskeratosis congenita (DC), but the molecular mechanisms involved remain unknown. CTC1 forms with STN1 and TEN1 a trimeric complex termed CST, which binds ssDNA, promotes telomere DNA synthes ...

Cold Spring Harbor Laboratory Press2013

CST for the grand finale of telomere replication

Joachim Lingner, Liuh-Yow Chen

Telomeric DNA at eukaryotic chromosome ends terminates with single stranded 3' G-rich overhangs. The overhang is generated by the interplay of several dynamic processes including semiconservative DNA replication, 3' end elongation by telomerase, C-strand f ...

Landes Bioscience2013

The THO complex component Thp2 counteracts telomeric R-loops and telomere shortening

Joachim Lingner, Verena Pfeiffer, Larissa Grolimund, Jérôme Crittin

Telomere maintenance by the conventional DNA replication machinery and telomerase is assisted by specialized DNA helicases, nucleases and telomere binding proteins. Here, we identify the THO components at telomeres and define critical roles of this complex ...

Nature Publishing Group2013

Telomere Length Homeostasis Responds to Changes in Intracellular dNTP Pools

Joachim Lingner, Shruti Sharma

Telomeres, the ends of linear eukaryotic chromosomes, shorten due to incomplete DNA replication and nucleolytic degradation. Cells counteract this shortening by employing a specialized reverse transcriptase called telomerase, which uses deoxyribonucleoside ...

Genetics Soc Am2013

A Quantitative Telomeric Chromatin Isolation Protocol (Q-TIP) to Characterize Telomere Composition Changes

Larissa Grolimund

Telomeres protect linear ends of eukaryotic chromosomes by preventing chromosomal end-to-end fusions and telomere attrition. They consist of repetitive DNA sequences, telomeric repeat containing RNAs (TERRAs) and proteins. Telomeres play a crucial role in ...

EPFL2013