Results 91 to 100 of about 3,588,418 (239)

Identification of the Unwinding Region in the Clostridioides difficile Chromosomal Origin of Replication

open access: yesFrontiers in Microbiology, 2020
Faithful DNA replication is crucial for viability of cells across all kingdoms. Targeting DNA replication is a viable strategy for inhibition of bacterial pathogens.
Ana M. Oliveira Paiva   +6 more
doaj   +1 more source

“Update vision on COVID-19: Structure, immune pathogenesis, treatment and safety assessment”

open access: yesSensors International, 2021
The on-going SARS-CoV-2 causing COVID-19 discovered in December 2019, is responsible for a global pandemic. The virus belongs to the group of enveloped viruses containing linear, non-segmented, single stranded, positive sense strand RNA as genetic ...
Rishabh Agrahari   +5 more
doaj   +1 more source

The dynamics of eukaryotic replication initiation: origin specificity, licensing, and firing at the single-molecule level.

open access: yesMolecules and Cells, 2015
Eukaryotic replication initiation is highly regulated and dynamic. It begins with the origin recognition complex (ORC) binding DNA sites called origins of replication. ORC, together with Cdc6 and Cdt1, mediate pre-replicative complex (pre-RC) assembly by
D. Duzdevich   +5 more
semanticscholar   +1 more source

Evidence for symmetric chromosomal inversions around the replication origin in bacteria. [PDF]

open access: yes, 2000
BackgroundWhole-genome comparisons can provide great insight into many aspects of biology. Until recently, however, comparisons were mainly possible only between distantly related species.
Eisen, JA   +3 more
core   +1 more source

Diverged composition and regulation of the Trypanosoma brucei origin recognition complex that mediates DNA replication initiation [PDF]

open access: yes, 2016
Initiation of DNA replication depends upon recognition of genomic sites, termed origins, by AAA+ ATPases. In prokaryotes a single factor binds each origin, whereas in eukaryotes this role is played by a six-protein origin recognition complex (ORC).
Damasceno, Jeziel D.   +7 more
core   +3 more sources

Epigenetic Control of Replication Origins [PDF]

open access: yesCell Cycle, 2005
Efficient duplication of the eukaryotic genome requires the spatial and temporal coordination of numerous replication origins on each chromosome. Epigenetic factors, like chromatin environment, can have profound effects on origin site selection, utilization frequency, and cell cycle firing time.
Jing, Zhou   +4 more
openaire   +2 more sources

On the origins and variation of nucleotide skews of archaeal genomes

open access: yesFrontiers in Microbiology
We have used nucleotide skews as the proxy to understand the evolution of archaeal genomes. Our genome-wide studies using substantial datasets suggest that translational selection and the nature of the genetic code are universally conserved determinants ...
Adrien Paravel   +6 more
doaj   +1 more source

ATPase-Dependent Quality Control of DNA Replication Origin Licensing

open access: yesNature, 2013
The regulated loading of the Mcm2–7 DNA helicase (comprising six related subunits, Mcm2 to Mcm7) into pre-replicative complexes at multiple replication origins ensures precise once per cell cycle replication in eukaryotic cells.
J. Frigola   +3 more
semanticscholar   +1 more source

Replication forks, chromatin loops and dormant replication origins [PDF]

open access: yesGenome Biology, 2008
When DNA replication is slowed down, normally dormant replication origins are activated. Recent work demonstrates that cells adapt by changing the organization of chromatin loops and maintaining the new pattern of origin use in subsequent cell cycles.
Blow, J. Julian, Ge, Xin Q
openaire   +3 more sources

Activation of mammalian Chk1 during DNA replication arrest: a role for Chk1 in the intra-S phase checkpoint monitoring replication origin firing [PDF]

open access: yes, 2001
Checkpoints maintain order and fidelity in the cell cycle by blocking late-occurring events when earlier events are improperly executed. Here we describe evidence for the participation of Chk1 in an intra-S phase checkpoint in mammalian cells.
Feijoo, Carmen   +6 more
core   +2 more sources

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