How to untie G-quadruplex knots and why?

P Lejault, J Mitteaux, FR Sperti, D Monchaud - Cell chemical biology, 2021 - cell.com
For over two decades, the prime objective of the chemical biology community studying G-
quadruplexes (G4s) has been to use chemicals to interact with and stabilize G4s in cells to …

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 …

Structure-based discovery of first inhibitors targeting the helicase activity of human PIF1

MJA Wever, FR Scommegna… - Nucleic acids …, 2024 - academic.oup.com
PIF1 is a conserved helicase and G4 DNA binding and unwinding enzyme, with roles in
genome stability. Human PIF1 (hPIF1) is poorly understood, but its functions can become …

Replisome bypass of a protein-based R-loop block by Pif1

GD Schauer, LM Spenkelink… - Proceedings of the …, 2020 - National Acad Sciences
Efficient and faithful replication of the genome is essential to maintain genome stability.
Replication is carried out by a multiprotein complex called the replisome, which encounters …

Pif1-family helicases support fork convergence during DNA replication termination in eukaryotes

TD Deegan, J Baxter, MÁO Bazán, JTP Yeeles… - Molecular cell, 2019 - cell.com
The convergence of two DNA replication forks creates unique problems during DNA
replication termination. In E. coli and SV40, the release of torsional strain by type II …

Identification of the nuclear localization signal in the Saccharomyces cerevisiae Pif1 DNA helicase

RS Lee, CL Geronimo, L Liu, JM Twarowski… - PLoS …, 2023 - journals.plos.org
Saccharomyces cerevisiae Pif1 is a multi-functional DNA helicase that plays diverse roles in
the maintenance of the nuclear and mitochondrial genomes. Two isoforms of Pif1 are …

Yeast genome maintenance by the multifunctional PIF1 DNA helicase family

J Muellner, KH Schmidt - Genes, 2020 - mdpi.com
The two PIF1 family helicases in Saccharomyces cerevisiae, Rrm3, and ScPif1, associate
with thousands of sites throughout the genome where they perform overlap** and distinct …

The functional significance of the RPA-and PCNA-dependent recruitment of Pif1 to DNA

O Kotenko, S Makovets - EMBO reports, 2024 - embopress.org
Pif1 family helicases are multifunctional proteins conserved in eukaryotes, from yeast to
humans. They are important for the genome maintenance in both nuclei and mitochondria …

Rrm3 and Pif1 division of labor during replication through leading and lagging strand G-quadruplex

M Varon, D Dovrat, J Heuzé, I Tsirkas… - Nucleic acids …, 2024 - academic.oup.com
Members of the conserved Pif1 family of 5′-3′ DNA helicases can unwind G4s and
mitigate their negative impact on genome stability. In Saccharomyces cerevisiae, two Pif1 …

[HTML][HTML] Non-coding RNAs at the eukaryotic rDNA locus: RNA–DNA hybrids and beyond

O Vydzhak, B Luke, N Schindler - Journal of molecular biology, 2020 - Elsevier
The human ribosomal DNA (rDNA) locus encodes a variety of long non-coding RNAs
(lncRNAs). Among them, the canonical ribosomal RNAs that are the catalytic components of …