Publication
Insight into the Regulation of Telomerase Access to Telomeres by Shelterin Proteins
Related publications (52)
Telomere protection against oxidative stress
Telomeres are nucleoprotein structures at the ends of linear chromosomes, being essential for the maintenance of genomic integrity. Telomeres have a unique structure which distinguishes chromosome termini from DNA damage sites. Shelterin complexes are the ...
EPFL2023Identification and characterization of proteins that protect human telomeres from fragility
Difficulties to replicate telomeres - the ends of our chromosomes - can cause telomere shortening andgenome instability. These difficulties are due to the repetitive DNA sequence and distinct structures at telomeresthat challenge the semi-conservative DNA ...
EPFL2022TFIIH moonlighting at telomeres
Although telomeres are essential for chromosome stability, they represent fragile structures in our genome. Telomere shortening occurs during aging in cells lacking telomerase due to the end replication problem. In addition, recent work uncovered that the ...
COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT2022A Role for Human DNA Polymerase λ in Alternative Lengthening of Telomeres
Joachim Lingner, Liuh-Yow Chen
Telomerase negative cancer cell types use the Alternative Lengthening of Telomeres (ALT) pathway to elongate telomeres ends. Here, we show that silencing human DNA polymerase (Pol λ) in ALT cells represses ALT activity and induces telomeric stress. In addi ...
2021The makings of TERRA R-loops at chromosome ends
Joachim Lingner, Marianna Feretzaki, Rita Valador Fernandes
Telomeres protect chromosome ends from nucleolytic degradation, uncontrolled recombination by DNA repair enzymes and checkpoint signaling, and they provide mechanisms for their maintenance by semiconservative DNA replication, telomerase and homologous reco ...
TAYLOR & FRANCIS INC2021The human telomeric proteome during telomere replication
Joachim Lingner, Thomas Frédéric Lunardi, Aleksandra Vancevska, Gérald Joseph Paul Lossaint, Chih-Yi Gabriela Lin
Telomere shortening can cause detrimental diseases and contribute to aging. It occurs due to the end replication problem in cells lacking telomerase. Furthermore, recent studies revealed that telomere shortening can be attributed to difficulties of the sem ...
OXFORD UNIV PRESS2021RAD51-dependent recruitment of TERRA lncRNA to telomeres through R-loops
Joachim Lingner, Thomas Frédéric Lunardi, Marianna Feretzaki, Rita Valador Fernandes
Telomeres-repeated, noncoding nucleotide motifs and associated proteins that are found at the ends of eukaryotic chromosomes-mediate genome stability and determine cellular lifespan1. Telomeric-repeat-containing RNA (TERRA) is a class of long noncoding RNA ...
2020PRDX1 Counteracts Catastrophic Telomeric Cleavage Events That Are Triggered by DNA Repair Activities Post Oxidative Damage
Telomeres are prone to damage inflicted by reactive oxygen species (ROS). Oxidized telomeric DNA and nucleotide substrates inhibit telomerase, causing telomere shortening. In addition, ROS can induce telomeric single-strand DNA breaks (SSBs). The peroxired ...
2020Human shelterin protein POT1 prevents severe telomere instability induced by homology-directed DNA repair
Joachim Lingner, Anna-Sophia Briod
The evolutionarily conserved POT1 protein binds single-stranded G-rich telomeric DNA and has been implicated in contributing to telomeric DNA maintenance and the suppression of DNA damage checkpoint signaling. Here, we explore human POT1 function through g ...
WILEY2020RADX: A novel single-stranded DNA-binding protein regulating telomere recombination
Telomeres are specialized nucleoprotein structures present at the ends of linear chromosome. The telomeric DNA part is comprised of 5-15 kilo base pairs of double stranded TTAGGG repeats and it contains at the 3' end a single-stranded G-rich overhang of 50 ...
EPFL2019