Contacts and context that regulate DNA helicase unwinding and replisome progression

HM Perera, MS Behrmann, JM Hoang, WC Griffin… - The Enzymes, 2019 - Elsevier
Hexameric DNA helicases involved in the separation of duplex DNA at the replication fork
have a universal architecture but have evolved from two separate protein families. The …

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 …

The mechanism of DNA unwinding by the eukaryotic replicative helicase

DR Burnham, HB Kose, RB Hoyle… - Nature communications, 2019 - nature.com
Accurate DNA replication is tightly regulated in eukaryotes to ensure genome stability during
cell division and is performed by the multi-protein replisome. At the core an AAA+ hetero …

An explanation for origin unwinding in eukaryotes

LD Langston, ME O'Donnell - Elife, 2019 - elifesciences.org
Twin CMG complexes are assembled head-to-head around duplex DNA at eukaryotic
origins of replication. Mcm10 activates CMGs to form helicases that encircle single-strand …

Supporting evidence for DNA shearing as a mechanism for origin unwinding in eukaryotes

LD Langston, R Georgescu, ME O'Donnell - bioRxiv, 2019 - biorxiv.org
An earlier study demonstrated that head-to-head CMGs that encircle duplex DNA and track
inward, as at origins, melt double-strand (ds) DNA while encircling the duplex by pulling on …

Single-molecule imaging of eukaryotic replisomes reveals compositional plasticity

JS Lewis, LM Spenkelink, GD Schauer, O Yurieva… - bioRxiv, 2019 - biorxiv.org
Duplication of the chromosomal DNA prior to cell division is performed by the replisome, a
multi-protein complex that coordinates a large number of enzymatic activities. The eukaryotic …

Mechanistic Studies of Replication Fork Remodeling by DNA Translocases

GM Warren - 2019 - search.proquest.com
During DNA replication the replication fork can become stalled by impediments that prevent
complete and accurate duplication of the genome. DNA replication fork reversal is an …