Optical tweezers in single-molecule biophysics

CJ Bustamante, YR Chemla, S Liu… - Nature Reviews Methods …, 2021 - nature.com
Optical tweezers have become the method of choice in single-molecule manipulation
studies. In this Primer, we first review the physical principles of optical tweezers and the …

An overview of the molecular mechanisms of recombinational DNA repair

SC Kowalczykowski - Cold Spring Harbor Perspectives …, 2015 - cshperspectives.cshlp.org
Recombinational DNA repair is a universal aspect of DNA metabolism and is essential for
genomic integrity. It is a template-directed process that uses a second chromosomal copy …

The human Shu complex promotes RAD51 activity by modulating RPA dynamics on ssDNA

SR Hengel, KG Oppenheimer, CM Smith… - Nature …, 2024 - nature.com
Templated DNA repair that occurs during homologous recombination and replication stress
relies on RAD51. RAD51 activity is positively regulated by BRCA2 and the RAD51 paralogs …

Visualization of direct and diffusion-assisted RAD51 nucleation by full-length human BRCA2 protein

O Belan, L Greenhough, L Kuhlen, R Anand… - Molecular cell, 2023 - cell.com
Homologous recombination (HR) is essential for error-free repair of DNA double-strand
breaks, perturbed replication forks (RFs), and post-replicative single-stranded DNA (ssDNA) …

Protein dynamics of human RPA and RAD51 on ssDNA during assembly and disassembly of the RAD51 filament

CJ Ma, B Gibb, YH Kwon, P Sung… - Nucleic acids …, 2017 - academic.oup.com
Homologous recombination (HR) is a crucial pathway for double-stranded DNA break (DSB)
repair. During the early stages of HR, the newly generated DSB ends are processed to yield …

Exploiting DNA repair defects in colorectal cancer

NM Reilly, L Novara, F Di Nicolantonio… - Molecular …, 2019 - Wiley Online Library
Colorectal cancer (CRC) is the third leading cause of cancer‐related deaths worldwide.
Therapies that take advantage of defects in DNA repair pathways have been explored in the …

Dynamics and selective remodeling of the DNA-binding domains of RPA

N Pokhrel, CC Caldwell, EI Corless… - Nature structural & …, 2019 - nature.com
Replication protein A (RPA) coordinates important DNA metabolic events by stabilizing
single-stranded DNA (ssDNA) intermediates, activating the DNA-damage response and …

Single-molecule analysis reveals cooperative stimulation of Rad51 filament nucleation and growth by mediator proteins

O Belan, C Barroso, A Kaczmarczyk, R Anand… - Molecular cell, 2021 - cell.com
Homologous recombination (HR) is an essential DNA double-strand break (DSB) repair
mechanism, which is frequently inactivated in cancer. During HR, RAD51 forms …

Co-condensation of proteins with single-and double-stranded DNA

R Renger, JA Morin, R Lemaitre… - Proceedings of the …, 2022 - National Acad Sciences
Biomolecular condensates provide distinct compartments that can localize and organize
biochemistry inside cells. Recent evidence suggests that condensate formation is prevalent …

Nucleotide binding halts diffusion of the eukaryotic replicative helicase during activation

D Ramírez Montero, H Sánchez, E van Veen… - Nature …, 2023 - nature.com
The eukaryotic replicative helicase CMG centrally orchestrates the replisome and leads the
way at the front of replication forks. Understanding the motion of CMG on the DNA is …