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Recombination and chromosome segregation
The duplication of DNA and faithful segregation of newly replicated chromosomes at cell division is frequently dependent on recombinational processes. The rebuilding of broken or stalled replication forks is universally dependent on homologous recombination proteins.
Sherratt, D+6 more
openaire +4 more sources
Structure of the cohesin loader Scc2
The cohesin complex maintains genome integrity by ensuring correct sister-chromatid segregation during mitosis and meiosis. Here, Chaoet al. present a pseudo-atomic model of the full-length Scc2–Scc4 cohesin loader complex and reveal key Scc2 surfaces ...
William C. H. Chao+10 more
doaj +1 more source
A mitosis-specific and R loop–driven ATR pathway promotes faithful chromosome segregation
Mitosis-specific role of ATR The ATR (ataxia telangiectasia mutated and Rad3-related) kinase plays important roles in the S phase and during the DNA damage response to safeguard genome integrity. Kabeche et al.
Lilian Kabeche+3 more
semanticscholar +1 more source
Prime movers : mechanochemistry of mitotic kinesins [PDF]
Mitotic spindles are self-organizing protein machines that harness teams of multiple force generators to drive chromosome segregation. Kinesins are key members of these force-generating teams.
A Blangy+184 more
core +1 more source
Bacterial chromosome segregation [PDF]
Recent years have witnessed a resurgence of interest in how the bacterial chromosome is organized and how newly replicated chromosomes are faithfully segregated into daughter cells on cell division. In the past, the problem with studying bacterial chromosomes was their lack of any obvious morphology, combined with the lack of ability to readily ...
openaire +3 more sources
Accurate chromosome segregation by probabilistic self-organization [PDF]
Background: For faithful chromosome segregation during cell division, correct attachments must be established between sister chromosomes and microtubules from opposite spindle poles through kinetochores (chromosome bi-orientation). Incorrect attachments of kinetochore microtubules (kMTs) lead to chromosome mis-segregation and aneuploidy, which is often
arxiv +1 more source
Cancer genomes are frequently characterized by numerical and structural chromosomal abnormalities. Here we integrated a centromere-specific inactivation approach with selection for a conditionally essential gene, a strategy termed CEN-SELECT, to ...
P. Ly+10 more
semanticscholar +1 more source
Securin Is Not Required for Chromosomal Stability in Human Cells [PDF]
Abnormalities of chromosome number are frequently observed in cancers. The mechanisms regulating chromosome segregation in human cells are therefore of great interest.
Azofeifa+32 more
core +4 more sources
Centromere-localized Aurora B kinase is required for the fidelity of chromosome segregation
Aurora B localizes to centromeres, but it is unclear if this influences chromosome segregation in mitosis. Liang et al. find that two phospho-histone marks separately recruit Aurora B to centromeres and act redundantly for faithful chromosome segregation.
Cai Liang+8 more
semanticscholar +1 more source
The Drosophila histone variant H2A.V works in concert with HP1 to promote kinetochore-driven microtubule formation [PDF]
Unlike other organisms that have evolved distinct H2A variants for different functions, Drosophila melanogaster has just one variant which is capable of filling many roles.
Cenci, Giovanni, Verni', Fiammetta
core +1 more source