Results 41 to 50 of about 702,020 (309)

An Essential and Cell-Cycle-Dependent ORC Dimerization Cycle Regulates Eukaryotic Chromosomal DNA Replication

open access: yesCell Reports, 2020
Summary: Eukaryotic DNA replication licensing is a prerequisite for, and plays a role in, regulating genome duplication that occurs exactly once per cell cycle.
Aftab Amin   +10 more
doaj   +1 more source

Preferential re-replication of Drosophila heterochromatin in the absence of geminin. [PDF]

open access: yesPLoS Genetics, 2010
To ensure genomic integrity, the genome must be duplicated exactly once per cell cycle. Disruption of replication licensing mechanisms may lead to re-replication and genomic instability.
Queying Ding, David M MacAlpine
doaj   +1 more source

Cryo-EM structure of a helicase loading intermediate containing ORC-Cdc6-Cdt1-MCM2-7 bound to DNA [PDF]

open access: yes, 2013
In eukaryotes, the Cdt1-bound replicative helicase core MCM2-7 is loaded onto DNA by the ORC-Cdc6 ATPase to form a prereplicative complex (pre-RC) with an MCM2-7 double hexamer encircling DNA.
A Costa   +68 more
core   +1 more source

Emerging players in the initiation of eukaryotic DNA replication

open access: yesCell Division, 2012
Faithful duplication of the genome in eukaryotes requires ordered assembly of a multi-protein complex called the pre-replicative complex (pre-RC) prior to S phase; transition to the pre-initiation complex (pre-IC) at the beginning of DNA replication ...
Shen Zhen, Prasanth Supriya G
doaj   +1 more source

Ciz1 cooperates with cyclin-A-CDK2 to activate mammalian DNA replication in vitro [PDF]

open access: yes, 2010
Initiation of mammalian DNA replication can be reconstituted from isolated G1-phase nuclei and cell extracts, supplemented with cyclin-dependent protein kinases (CDKs).
Ainscough   +30 more
core   +3 more sources

The non-canonical role of Aurora-A in DNA replication

open access: yesFrontiers in Oncology, 2015
Aurora-A is a well-known mitotic kinase that regulates mitotic entry, spindle formation, and chromosome maturation as a canonical role. During mitosis, Aurora-A protein is stabilized by its phosphorylation at Ser51 via blocking anaphase promoting complex/
Takaaki eTsunematsu   +4 more
doaj   +1 more source

Pre-replicative complex assembly with purified proteins

open access: yesMethods, 2012
Licensing of origins of eukaryotic DNA replication involves the loading of six minichromosome maintenance proteins (Mcm2-7) into pre-replicative complexes (pre-RCs). The assembly of the pre-RC is restricted to G1 phase of the cell cycle, which is crucial to ensure once per cell cycle DNA replication.
Amina Mehanna, John F.X. Diffley
openaire   +2 more sources

Genome-wide hierarchy of replication origin usage in Saccharomyces cerevisiae. [PDF]

open access: yesPLoS Genetics, 2006
Replication origins in a genome are inherently different in their base sequence and in their response to temporal and cell cycle regulation signals for DNA replication.
Justin J Donato   +2 more
doaj   +1 more source

LSD1 is required for euchromatic origin firing and replication timing

open access: yesSignal Transduction and Targeted Therapy, 2022
The chromatin-based rule governing the selection and activation of replication origins remains to be elucidated. It is believed that DNA replication initiates from open chromatin domains; thus, replication origins reside in open and active chromatin ...
Yue Wang   +9 more
doaj   +1 more source

Cryo-EM structure of human hexameric MCM2-7 complex

open access: yesiScience, 2022
Summary: The central step in the initiation of eukaryotic DNA replication is the loading of the minichromosome maintenance 2–7 (MCM2-7) complex, the core of the replicative DNA helicase, onto chromatin at replication origin. Here, we reported the cryo-EM
Naining Xu   +8 more
doaj   +1 more source

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