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GenomicsPost-licensing specification of eukaryotic replication origins by facilitated Mcm2-7 sliding along DNA
Eukaryotic genomes are replicated from many origin sites that are licensed by the loading of inactive double hexamers of the replicative DNA helicase, Mcm2-7. How eukaryotic origin positions are specified remains elusive. Here we show that, contrary to the bacterial paradigm, eukaryotic origins are ...
ORGANISM(S): Saccharomyces cerevisiae 
2016-01-07 | E-GEOD-69065 | biostudies-arrayexpress
TranscriptomicsComparative genomic hybridization of S. pombe co-overexpressing DNA synthesis initiation factors cdc18 (cdc6) and cdt1 to investigate gene copy number increases
During S-phase of the eukaryotic cell cycle, controls exist to ensure that replication origins fire only once and become inactivated after traverse of a replication fork. Failure of these controls results in local amplification of the genome which can lead to gene copy increases important for both ...
ORGANISM(S): Schizosaccharomyces pombe 
2010-08-13 | E-MTAB-139 | biostudies-arrayexpress
TranscriptomicsLoss of DNA replication control is a potent initiator of gene amplification
Eukaryotic cells use numerous mechanisms to ensure that no segment of their DNA is re-replicated within a single cell cycle. Despite longstanding speculation that such tight regulation is needed to protect cells from genomic alterations, this notion has never been experimentally tested. Here we show...
ORGANISM(S): Saccharomyces cerevisiae 
2011-05-17 | E-GEOD-22018 | biostudies-arrayexpress
TranscriptomicsGenome-wide localization of ORC and MCM binding sites and identification of replication origins in S. pombe
DNA replication of eukaryotic chromosomes initiates at a number of discrete loci, called replication origins. Distribution and regulation of origins are important for complete duplication of the genome. Here, we determined locations of Orc1 and Mcm6, components of pre-replicative complex (pre-RC),...
ORGANISM(S): Schizosaccharomyces pombe 
2010-06-11 | E-GEOD-6523 | biostudies-arrayexpress
TranscriptomicsMapping origins of replication in Arabidopsis thaliana: Examination of BrdU labeled DNA and unlabeled DNA in one cell type
Genomic integrity requires faithful chromosome duplication. Origins of replication are the genomic sites where DNA replication initiates in every cell cycle. There are multiple origins scattered throughout the eukaryotic genome whose genome-wide identification has been a hard challenge, especially i...
ORGANISM(S): Arabidopsis thaliana 
2011-11-06 | E-GEOD-21781 | biostudies-arrayexpress
TranscriptomicsMapping origins of replication in Arabidopsis thaliana
Genomic integrity requires faithful chromosome duplication. Origins of replication are the genomic sites where DNA replication initiates in every cell cycle. There are multiple origins scattered throughout the eukaryotic genome whose genome-wide identification has been a hard challenge, especially i...
ORGANISM(S): Arabidopsis thaliana 
2011-02-06 | E-GEOD-21828 | biostudies-arrayexpress
TranscriptomicsMapping origins of replication in Arabidopsis thaliana: H4K5ac ChIP vs. unmodified H3 ChIP
Genomic integrity requires faithful chromosome duplication. Origins of replication are the genomic sites where DNA replication initiates in every cell cycle. There are multiple origins scattered throughout the eukaryotic genome whose genome-wide identification has been a hard challenge, especially i...
ORGANISM(S): Arabidopsis thaliana 
2011-11-06 | E-GEOD-21827 | biostudies-arrayexpress
TranscriptomicsAvoiding chromosome pathology when replication forks collide
Chromosome duplication normally initiates via the assembly of replication fork complexes at defined origins. DNA synthesis by any one fork is thought to cease when it meets another travelling in the opposite direction, at which stage the replication machinery may simply dissociate before the nascent...
ORGANISM(S): Escherichia coli 
2013-07-22 | E-GEOD-41975 | biostudies-arrayexpress
MetabolomicsCreation and Characterization of a Genomically Hybrid Strain in the Nitrogen-Fixing Symbiotic Bacterium Sinorhizobium meliloti
Many bacteria, often associated with eukaryotic hosts and of relevance for biotechnological applications, harbor a multipartite genome composed of more than one replicon. Biotechnologically relevant phenotypes are often encoded by genes residing on the secondary replicons. A synthetic biology approa...
2021-03-17 | MTBLS576 | MetaboLights
ModelsNovak1998-Model scenarios for evolution of the eukaryotic cell cycle.
Progress through the division cycle of present day eukaryotic cells is controlled by a complex network consisting of (i) cyclin-dependent kinases (CDKs) and their associated cyclins, (ii) kinases and phosphatases that regulate CDK activity, and (iii) stoichiometric inhibitors that sequester cyclin-C...
2020-05-04 | MODEL2005040001 | BioModels
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