Results 21 to 30 of about 30,157 (159)

Towards a Structural Mechanism for Sister Chromatid Cohesion Establishment at the Eukaryotic Replication Fork

open access: yesBiology, 2021
Cohesion between replicated chromosomes is essential for chromatin dynamics and equal segregation of duplicated genetic material. In the G1 phase, the ring-shaped cohesin complex is loaded onto duplex DNA, enriching at replication start sites, or ...
Sarah S. Henrikus, Alessandro Costa
doaj   +1 more source

Localization of an accessory helicase at the replisome is critical in sustaining efficient genome duplication [PDF]

open access: yes, 2010
© The Author(s) 2010. Published by Oxford University PressGenome duplication requires accessory helicases to displace proteins ahead of advancing replication forks.
Lloyd, RG   +11 more
core   +1 more source

Speed variations of bacterial replisomes

open access: yeseLife, 2022
Replisomes are multi-protein complexes that replicate genomes with remarkable speed and accuracy. Despite their importance, their dynamics is poorly characterized, especially in vivo.
Deepak Bhat   +4 more
doaj   +1 more source

Sen1 Is Recruited to Replication Forks via Ctf4 and Mrc1 and Promotes Genome Stability

open access: yesCell Reports, 2020
Summary: DNA replication and RNA transcription compete for the same substrate during S phase. Cells have evolved several mechanisms to minimize such conflicts.
Rowin Appanah   +4 more
doaj   +1 more source

In Vitro Reconstitution Defines the Minimal Requirements for Cdc48-Dependent Disassembly of the CMG Helicase in Budding Yeast

open access: yesCell Reports, 2019
Summary: Disassembly of the replisome is the final step of chromosome duplication in eukaryotes. In budding yeast and metazoa, cullin ubiquitin ligases are required to ubiquitylate the Cdc45-MCM-GINS (CMG) helicase that lies at the heart of the replisome,
Progya P. Mukherjee, Karim P.M. Labib
doaj   +1 more source

Single-Molecule Studies of the Replisome [PDF]

open access: yes, 2010
Replication of DNA is carried out by the replisome, a multiprotein complex responsible for the unwinding of parental DNA and the synthesis of DNA on each of the two DNA strands.
Loparo, Joseph J.,   +3 more
core   +2 more sources

Transcription leads to pervasive replisome instability in bacteria

open access: yeseLife, 2017
The canonical model of DNA replication describes a highly-processive and largely continuous process by which the genome is duplicated. This continuous model is based upon in vitro reconstitution and in vivo ensemble experiments. Here, we characterize the
Sarah M Mangiameli   +3 more
doaj   +1 more source

Allosteric communication in DNA polymerase clamp loaders relies on a critical hydrogen-bonded junction

open access: yeseLife, 2021
Clamp loaders are AAA+ ATPases that load sliding clamps onto DNA. We mapped the mutational sensitivity of the T4 bacteriophage sliding clamp and clamp loader by deep mutagenesis, and found that residues not involved in catalysis or binding display ...
Subu Subramanian   +7 more
doaj   +1 more source

The Response of the Replication Apparatus to Leading Template Strand Blocks

open access: yesCells, 2023
Duplication of the genome requires the replication apparatus to overcome a variety of impediments, including covalent DNA adducts, the most challenging of which is on the leading template strand.
Marina A. Bellani   +4 more
doaj   +1 more source

The human CTF4-orthologue AND-1 interacts with DNA polymerase α/primase via its unique C-terminal HMG box [PDF]

open access: yesOpen Biology, 2017
A dynamic multi-protein assembly known as the replisome is responsible for DNA synthesis in eukaryotic cells. In yeast, the hub protein Ctf4 bridges DNA helicase and DNA polymerase and recruits factors with roles in metabolic processes coupled to DNA ...
Mairi L. Kilkenny   +5 more
doaj   +1 more source

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