Results 11 to 20 of about 132,729 (299)
Modulation of MCM Helicase activity [PDF]
, 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 +6 more sources
A conserved Mcm4 motif is required for Mcm2-7 double-hexamer formation and origin DNA unwinding
eLife, 2019 Licensing of eukaryotic origins of replication requires DNA loading of two copies of the Mcm2-7 replicative helicase to form a head-to-head double-hexamer, ensuring activated helicases depart the origin bidirectionally.
Kanokwan Champasa +4 more
doaj +1 more source
ATPase cycle and DNA unwinding kinetics of RecG helicase [PDF]
, 2012 The superfamily 2 bacterial helicase, RecG, is a monomeric enzyme with a role in DNA repair by reversing stalled replication forks. The helicase must act specifically and rapidly to prevent replication fork collapse. We have shown that RecG binds tightly
Webb, Martin R +11 more
core +1 more source
eLife, 2016 Replisome assembly requires the loading of replicative hexameric helicases onto origins by AAA+ ATPases. How loader activity is appropriately controlled remains unclear.
Iris V Hood, James M Berger
doaj +1 more source
European Journal of Biology, 2022 Objective: Coronavirus Disease 2019 (COVID19) is a viral disease caused by Severe Acute Respiratory Syndrome Coronavirus-2 (SARS CoV-2). The high mutation propensity of the SARS CoV-2 genome is one of the biggest threats to the long-term validity of ...
Ekrem Akbulut
doaj +1 more source
Taking a molecular motor for a spin : helicase mechanism studied by spin labelling and PELDOR [PDF]
, 2015 Welcome Trust programme grant [WT091825MA to M.F.W., J.H.N.]; Wellcome Trust multi-user equipment grant [099149/Z/12/Z]. Royal Society Wolfseon Merit Award (to M.F.W., J.H.N.).
James H. Naismith +9 more
core +1 more source
Localization of an accessory helicase at the replisome is critical in sustaining efficient genome duplication [PDF]
, 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
Free-energy simulations reveal molecular mechanism for functional switch of a DNA helicase
eLife, 2018 Helicases play key roles in genome maintenance, yet it remains elusive how these enzymes change conformations and how transitions between different conformational states regulate nucleic acid reshaping.
Wen Ma +4 more
doaj +1 more source
DNA Helicase–Polymerase Coupling in Bacteriophage DNA Replication
Viruses, 2021 Bacteriophages have long been model systems to study the molecular mechanisms of DNA replication. During DNA replication, a DNA helicase and a DNA polymerase cooperatively unwind the parental DNA.
Chen-Yu Lo, Yang Gao
doaj +1 more source
Cold Spring Harbor Symposia on Quantitative Biology, 1979 In summary, we postulate that DNA unwinding and ATP dephosphorylation are coupled in different ways, depending on whether the fibrous ATPase or one of the globular ATPases provides the catalytic agent. Unanswered is the question of whether there is stoichiometry of ATP utilization during the unwinding of a duplex, and unsolved is the role of the ...
Kuhn, B. +2 more
openaire +3 more sources