The regulation and functions of DNA and RNA G-quadruplexes

D Varshney, J Spiegel, K Zyner, D Tannahill… - … reviews Molecular cell …, 2020 - nature.com
DNA and RNA can adopt various secondary structures. Four-stranded G-quadruplex (G4)
structures form through self-recognition of guanines into stacked tetrads, and considerable …

Dynamic alternative DNA structures in biology and disease

G Wang, KM Vasquez - Nature Reviews Genetics, 2023 - nature.com
Repetitive elements in the human genome, once considered 'junk DNA', are now known to
adopt more than a dozen alternative (that is, non-B) DNA structures, such as self-annealed …

TERRA and RAD51AP1 promote alternative lengthening of telomeres through an R-to D-loop switch

T Yadav, JM Zhang, J Ouyang, W Leung, A Simoneau… - Molecular cell, 2022 - cell.com
Alternative lengthening of telomeres (ALT), a telomerase-independent process maintaining
telomeres, is mediated by break-induced replication (BIR). RAD52 promotes ALT by …

Whole genome experimental maps of DNA G-quadruplexes in multiple species

G Marsico, VS Chambers, AB Sahakyan… - Nucleic acids …, 2019 - academic.oup.com
Genomic maps of DNA G-quadruplexes (G4s) can help elucidate the roles that these
secondary structures play in various organisms. Herein, we employ an improved version of a …

Intertwining roles of R-loops and G-quadruplexes in DNA repair, transcription and genome organization

P Wulfridge, K Sarma - Nature Cell Biology, 2024 - nature.com
R-loops are three-stranded nucleic acid structures that are abundant and widespread across
the genome and that have important physiological roles in many nuclear processes. Their …

Homologous recombination and human health: the roles of BRCA1, BRCA2, and associated proteins

R Prakash, Y Zhang, W Feng… - Cold Spring Harbor …, 2015 - cshperspectives.cshlp.org
Homologous recombination (HR) is a major pathway for the repair of DNA double-strand
breaks in mammalian cells, the defining step of which is homologous strand exchange …

Quantitative visualization of DNA G-quadruplex structures in human cells

G Biffi, D Tannahill, J McCafferty… - Nature chemistry, 2013 - nature.com
Four-stranded G-quadruplex nucleic acid structures are of great interest as their high
thermodynamic stability under near-physiological conditions suggests that they could form in …

G-quadruplexes and helicases

O Mendoza, A Bourdoncle, JB Boulé… - Nucleic acids …, 2016 - academic.oup.com
Guanine-rich DNA strands can fold in vitro into non-canonical DNA structures called G-
quadruplexes. These structures may be very stable under physiological conditions …

DNA secondary structures: stability and function of G-quadruplex structures

ML Bochman, K Paeschke, VA Zakian - Nature Reviews Genetics, 2012 - nature.com
In addition to the canonical double helix, DNA can fold into various other inter-and
intramolecular secondary structures. Although many such structures were long thought to be …

Fanconi anemia: current insights regarding epidemiology, cancer, and DNA repair

JD Peake, E Noguchi - Human genetics, 2022 - Springer
Fanconi anemia is a genetic disorder that is characterized by bone marrow failure, as well
as a predisposition to malignancies including leukemia and squamous cell carcinoma …