Results 41 to 50 of about 7,568,861 (163)

The Mcm2-7 Complex Has In Vitro Helicase Activity [PDF]

open access: yesMolecular Cell, 2008
Helicases unwind duplex DNA ahead of the polymerases at the replication fork. However, the identity of the eukaryotic replicative helicase has been controversial; in vivo studies implicate the ring-shaped heterohexameric Mcm2-7 complex, although only a specific subset of Mcm subunits (Mcm467) unwind DNA in vitro.
Bochman, Matthew L., Schwacha, Anthony
openaire   +2 more sources

Chronic DNA Replication Stress Reduces Replicative Lifespan of Cells by TRP53-Dependent, microRNA-Assisted MCM2-7 Downregulation. [PDF]

open access: yesPLoS Genetics, 2016
Circumstances that compromise efficient DNA replication, such as disruptions to replication fork progression, cause a state known as DNA replication stress (RS).
Gongshi Bai   +2 more
doaj   +1 more source

Stepwise Regulated Chromatin Assembly of MCM2–7 Proteins [PDF]

open access: yesJournal of Biological Chemistry, 2000
Acquisition of the competence to replicate requires the assembly of the MCM2-7 (minichromosome maintenance) protein complex onto pre-replicative chromatin, a step of the licensing reaction. This step is thought to occur through binding of a heterohexameric MCM complex containing the six related MCM subunits.
D, Maiorano, J M, Lemaître, M, Méchali
openaire   +2 more sources

Selective role of the DNA helicase Mcm5 in BMP retrograde signaling during Drosophila neuronal differentiation.

open access: yesPLoS Genetics, 2022
The MCM2-7 complex is a highly conserved hetero-hexameric protein complex, critical for DNA unwinding at the replicative fork during DNA replication. Overexpression or mutation in MCM2-7 genes is linked to and may drive several cancer types in humans. In
Irene Rubio-Ferrera   +7 more
doaj   +1 more source

Decreased MCM2-6 in Drosophila S2 cells does not generate significant DNA damage or cause a marked increase in sensitivity to replication interference. [PDF]

open access: yes, 2011
A reduction in the level of some MCM proteins in human cancer cells (MCM5 in U20S cells or MCM3 in Hela cells) causes a rapid increase in the level of DNA damage under normal conditions of cell proliferation and a loss of viability when the cells are ...
Cotterill, S.   +24 more
core   +2 more sources

Mechanism and timing of Mcm2-7 ring closure during DNA replication origin licensing. [PDF]

open access: yesNat Struct Mol Biol, 2017
The opening and closing of two ring-shaped Mcm2-7 DNA helicases is necessary to license eukaryotic origins of replication, although the mechanisms controlling these events are unclear.
Ticau S   +5 more
europepmc   +2 more sources

Validation of a high throughput screening assay to identify small molecules that target the eukaryotic replicative helicase

open access: yesSLAS Discovery, 2022
Mcm2-7 is the catalytic core of the eukaryotic replicative helicase, which together with CDC45 and the GINS complex unwind parental DNA to generate templates for DNA polymerase.
Jordan Sanders   +6 more
doaj   +1 more source

Activation of the MCM2-7 Helicase by Association with Cdc45 and GINS Proteins [PDF]

open access: yesMolecular Cell, 2010
MCM2-7 proteins provide essential helicase functions in eukaryotes at chromosomal DNA replication forks. During the G1 phase of the cell cycle, they remain loaded on DNA but are inactive. We have used recombinant methods to show that the Drosophila MCM2-7 helicase is activated in complex with Cdc45 and the four GINS proteins (CMG complex).
Ilves, Ivar   +3 more
openaire   +2 more sources

Structural mechanism for replication origin binding and remodeling by a metazoan origin recognition complex and its co-loader Cdc6

open access: yesNature Communications, 2020
The origin recognition complex (ORC) is essential for loading the Mcm2–7 replicative helicase onto DNA during DNA replication initiation. Here, the authors describe several cryo-electron microscopy structures of Drosophila ORC bound to DNA and its ...
Jan Marten Schmidt, Franziska Bleichert
doaj   +1 more source

Expression and Prognostic Value of MCM Family Genes in Osteosarcoma

open access: yesFrontiers in Molecular Biosciences, 2021
We performed a detailed cancer VS normal analysis to explore the expression and prognostic value of minichromosome maintenance (MCM) proteinsin human sarcoma.
Jian Zhou   +6 more
doaj   +1 more source

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