Results 61 to 70 of about 26,517 (143)

Modulation of MCM Helicase activity [PDF]

open access: yes, 2011
The minichromosome maintenance (MCM) proteins are essential for the initiation and progression of DNA replication. MCMs are believed to function as the replicative helicase in archaea and eukaryotes.
Satti, Rabab
core   +1 more source

The mechanism of DNA unwinding by the eukaryotic replicative helicase

open access: yesNature Communications, 2019
How the eukaryotic helicase unzips DNA during replication is not well understood. By measuring the real-time motion of purified CMG unwinding DNA with magnetic tweezers, the authors reveal the dynamics where isolated CMG unwinds via a biased random walk ...
Daniel R. Burnham   +3 more
doaj   +1 more source

Helicase binding to DnaI exposes a cryptic DNA-binding site during helicase loading in Bacillus subtilis [PDF]

open access: yes, 1981
The Bacillus subtilis DnaI, DnaB and DnaD proteins load the replicative ring helicase DnaC onto DNA during priming of DNA replication. Here we show that DnaI consists of a C-terminal domain (Cd) with ATPase and DNA-binding activities and an N-terminal ...
Shi, Wei   +999 more
core   +49 more sources

Multiple UBX proteins reduce the ubiquitin threshold of the mammalian p97-UFD1-NPL4 unfoldase

open access: yeseLife, 2022
The p97/Cdc48 ATPase and its ubiquitin receptors Ufd1-Npl4 are essential to unfold ubiquitylated proteins in many areas of eukaryotic cell biology.
Ryo Fujisawa   +2 more
doaj   +1 more source

DNA polymerase ε-dependent modulation of the pausing property of the CMG helicase at the barrier. [PDF]

open access: yesGenes Dev, 2018
The proper pausing of replication forks at barriers on chromosomes is important for genome integrity. However, the detailed mechanism underlying this process has not been well elucidated. Here, we successfully reconstituted fork-pausing reactions from purified yeast proteins on templates that had binding sites for the LacI, LexA, and/or Fob1 proteins ...
Hizume K   +4 more
europepmc   +4 more sources

LPCAT3 as a Potential Drug Target for Ultraviolet Radiation–Induced Cataract: Insights From Multiomics Analysis

open access: yesThe Kaohsiung Journal of Medical Sciences, EarlyView.
ABSTRACT Ultraviolet B (UVB) radiation is a major risk factor for cataract development, but the molecular mechanisms underlying this process, particularly the involvement of regulated cell death pathways such as ferroptosis, remain unclear. Transcriptomic, proteomic, and metabolomic analyses were performed on lens tissues from UVB‐induced cataract rat ...
Fei Xu   +4 more
wiley   +1 more source

Rad53 checkpoint kinase regulation of DNA replication fork rate via Mrc1 phosphorylation

open access: yeseLife, 2021
The Rad53 DNA checkpoint protein kinase plays multiple roles in the budding yeast cell response to DNA replication stress. Key amongst these is its enigmatic role in safeguarding DNA replication forks.
Allison W McClure, John FX Diffley
doaj   +1 more source

Inhibin βB Mediates Oligotrophic Adaptation via Regulating Muscle Satellite Cell Proliferation and Differentiation in Schizopygopsis younghusbandi

open access: yesIntegrative Zoology, EarlyView.
① Nutrient deficiency upregulates inhibin βB, activating SMAD signaling to promote p21. Increased p21 inhibits mcm2/mcm4/mcm5 and cyclin E2, inducing G1‐phase arrest, slowing growth, and reducing energy consumption. ② Inhibin βB also upregulates pdgf‐c, which induces α‐SMA, leading to muscle satellite cell fibrosis.
Weiqiang Li   +16 more
wiley   +1 more source

Cryo-EM structures of the eukaryotic replicative helicase bound to a translocation substrate

open access: yesNature Communications, 2016
The Cdc45-MCM-GINS (CMG) helicase unwinds DNA during replication, a process that requires the ATPase-dependent activity of the MCM complex. Using cryo-EM reconstructions of the CMG complex in different conformations, the authors propose a model where the
Ferdos Abid Ali   +7 more
doaj   +1 more source

Expanding Phenotype of GINS1 Deficiency: A Case Report and Review of the Literature

open access: yesClinical Genetics, Volume 109, Issue 6, Page 1076-1080, June 2026.
The authors present a novel case and review of individuals with GINS1 deficiency, causing severe growth restriction and combined immunodeficiency. Only the ninth case of this ultrarare disorder, it highlights the role of these variants in disease, glaucoma as a feature, and the possibility of immunodeficiency without infections in affected individuals.
Michael P. Mackley   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy