[HTML][HTML] Causes and consequences of DNA single-strand breaks

KW Caldecott - Trends in Biochemical Sciences, 2024 - cell.com
DNA single-strand breaks (SSBs) are among the most common lesions arising in human
cells, with tens to hundreds of thousands arising in each cell, each day. Cells have efficient …

Break-induced replication: unraveling each step

L Liu, A Malkova - Trends in Genetics, 2022 - cell.com
Break-induced replication (BIR) repairs one-ended double-strand DNA breaks through
invasion into a homologous template followed by DNA synthesis. Different from S-phase …

Inducing multiple nicks promotes interhomolog homologous recombination to correct heterozygous mutations in somatic cells

A Tomita, H Sasanuma, T Owa, Y Nakazawa… - Nature …, 2023 - nature.com
CRISPR/Cas9-mediated gene editing has great potential utility for treating genetic diseases.
However, its therapeutic applications are limited by unintended genomic alterations arising …

Two-ended recombination at a Flp-nickase-broken replication fork

R Elango, NM Nilavar, AG Li, D Nguyen, E Rass… - Molecular Cell, 2025 - cell.com
Replication fork collision with a DNA nick can generate a one-ended break, fostering
genomic instability. The opposing fork's collision with the nick could form a second DNA end …

Break-induced replication orchestrates resection-dependent template switching

T Zhang, Y Rawal, H Jiang, Y Kwon, P Sung… - Nature, 2023 - nature.com
Break-induced telomere synthesis (BITS) is a RAD51-independent form of break-induced
replication that contributes to alternative lengthening of telomeres,. This homology-directed …

TOP3A amplification and ATRX inactivation are mutually exclusive events in pediatric osteosarcomas using ALT

A de Nonneville, S Salas, F Bertucci… - EMBO Molecular …, 2022 - embopress.org
In some types of cancer, telomere length is maintained by the alternative lengthening of
telomeres (ALT) mechanism. In many ALT cancers, the α‐thalassemia/mental retardation …

TERRA expression is regulated by the telomere-binding proteins POT-1 and POT-2 in Caenorhabditis elegans

C Manzato, L Larini, C Oss Pegorar… - Nucleic Acids …, 2023 - academic.oup.com
Several aspects of telomere biology are regulated by the telomeric repeat-containing RNA
TERRA. While TERRA expression is conserved through evolution, species-specific …

53BP1 deficiency leads to hyperrecombination using break-induced replication (BIR)

SB Shah, Y Li, S Li, Q Hu, T Wu, Y Shi… - Nature …, 2024 - nature.com
Break-induced replication (BIR) is mutagenic, and thus its use requires tight regulation, yet
the underlying mechanisms remain elusive. Here we uncover an important role of 53BP1 in …

Stressed? Break-induced replication comes to the rescue!

RS Lee, JM Twarowski, A Malkova - DNA repair, 2024 - Elsevier
Break-induced replication (BIR) is a homologous recombination (HR) pathway that repairs
one-ended DNA double-strand breaks (DSBs), which can result from replication fork …

The safe path at the fork: ensuring replication-associated DNA double-strand breaks are repaired by homologous recombination

JA Nickoloff, N Sharma, L Taylor, SJ Allen… - Frontiers in …, 2021 - frontiersin.org
Cells must replicate and segregate their DNA to daughter cells accurately to maintain
genome stability and prevent cancer. DNA replication is usually fast and accurate, with …