Mechanisms and regulation of DNA replication initiation in eukaryotes

MW Parker, MR Botchan, JM Berger - Critical reviews in …, 2017 - Taylor & Francis
Cellular DNA replication is initiated through the action of multiprotein complexes that
recognize replication start sites in the chromosome (termed origins) and facilitate duplex …

Single-molecule views of protein movement on single-stranded DNA

T Ha, AG Kozlov, TM Lohman - Annual review of biophysics, 2012 - annualreviews.org
The advent of new technologies allowing the study of single biological molecules continues
to have a major impact on studies of interacting systems as well as enzyme reactions. These …

Structure of the eukaryotic MCM complex at 3.8 Å

N Li, Y Zhai, Y Zhang, W Li, M Yang, J Lei, BK Tye… - Nature, 2015 - nature.com
DNA replication in eukaryotes is strictly regulated by several mechanisms. A central step in
this replication is the assembly of the heterohexameric minichromosome maintenance …

The minichromosome maintenance replicative helicase

SD Bell, MR Botchan - Cold Spring Harbor perspectives …, 2013 - cshperspectives.cshlp.org
The eukaryotic replicative helicase, the minichromosome maintenance (MCM) complex, is
composed of six distinct, but related, subunits MCM (2–7). The relationship between the …

Mechanisms of hexameric helicases

AJ Fernandez, JM Berger - Critical reviews in biochemistry and …, 2021 - Taylor & Francis
Ring-shaped hexameric helicases are essential motor proteins that separate duplex nucleic
acid strands for DNA replication, recombination, and transcriptional regulation. Two …

The DNA replication fork suppresses CMG unloading from chromatin before termination

E Low, G Chistol, MS Zaher… - Genes & …, 2020 - genesdev.cshlp.org
When converging replication forks meet during replication termination, the CMG (Cdc45–
MCM2–7–GINS) helicase is polyubiquitylated by CRL2 Lrr1 and unloaded from chromatin …

Cdc45 (cell division cycle protein 45) guards the gate of the Eukaryote Replisome helicase stabilizing leading strand engagement

T Petojevic, JJ Pesavento, A Costa… - Proceedings of the …, 2015 - National Acad Sciences
DNA replication licensing is now understood to be the pathway that leads to the assembly of
double hexamers of minichromosome maintenance (Mcm2–7) at origin sites. Cell division …

Dynamics of the eukaryotic replicative helicase at lagging-strand protein barriers support the steric exclusion model

HB Kose, NB Larsen, JP Duxin, H Yardimci - Cell Reports, 2019 - cell.com
Progression of DNA replication depends on the ability of the replisome complex to overcome
nucleoprotein barriers. During eukaryotic replication, the CMG helicase translocates along …

Translocation and stability of replicative DNA helicases upon encountering DNA-protein cross-links

T Nakano, M Miyamoto-Matsubara… - Journal of Biological …, 2013 - ASBMB
DNA-protein cross-links (DPCs) are formed when cells are exposed to various DNA-
damaging agents. Because DPCs are extremely large, steric hindrance conferred by DPCs …

Action of CMG with strand-specific DNA blocks supports an internal unwinding mode for the eukaryotic replicative helicase

L Langston, M O'Donnell - Elife, 2017 - elifesciences.org
Replicative helicases are ring-shaped hexamers that encircle DNA for duplex unwinding.
The currently accepted view of hexameric helicase function is by steric exclusion, where the …