Results 41 to 50 of about 18,693 (245)

Mechanics of Sister Chromatids studied with a Polymer Model

open access: yesFrontiers in Physics, 2013
Sister chromatid cohesion denotes the phenomenon that sister chromatids are initially attached to each other in mitosis to guarantee the error-free distribution into the daughter cells.
Yang eZhang   +3 more
doaj   +1 more source

Meiotic sex chromosome cohesion and autosomal synapsis are supported by Esco2.

open access: yes, 2020
In mitotic cells, establishment of sister chromatid cohesion requires acetylation of the cohesin subunit SMC3 (acSMC3) by ESCO1 and/or ESCO2. Meiotic cohesin plays additional but poorly understood roles in the formation of chromosome axial elements (AEs)
Biswas, U.   +6 more
core   +1 more source

Establishment of Sister Chromatid Cohesion [PDF]

open access: yesCurrent Biology, 2009
The process of sister chromatid pairing, or cohesion establishment, is coupled to DNA replication and fundamental to proper chromosome segregation and cell viability. In the past year, several articles have provided important new insights into cohesion establishment, an activity predicated on the acetyltransferase Ctf7/Eco1. Here, I review new findings
openaire   +2 more sources

PHB2 Protects Sister-Chromatid Cohesion in Mitosis [PDF]

open access: yesCurrent Biology, 2007
Cohesion between sister chromatids is essential for proper chromosome segregation in mitosis. In vertebrate mitotic cells, most cohesin is removed from the chromosome arms [1-4], but centromeric cohesin is protected by shugoshin until the onset of anaphase [5].
Takata, Hideaki   +9 more
openaire   +2 more sources

Function and mechanism of cohesin REC8 during meiosis

open access: yes浙江大学学报. 农业与生命科学版, 2023
Cohesin is a functionally and evolutionarily conserved multi-subunit protein complex that is required for sister chromatid cohesion and chromatin loop structure in both mitosis and meiosis. The meiotic cell-cycle consisting of one DNA replication and two
DAI Jingling, YU Chao
doaj   +1 more source

Astrin is required for the maintenance of sister chromatid cohesion and centrosome integrity [PDF]

open access: yes, 2007
Faithful chromosome segregation in mitosis requires the formation of a bipolar mitotic spindle with stably attached chromosomes. Once all of the chromosomes are aligned, the connection between the sister chromatids is severed by the cysteine protease ...
Gruneberg, Ulrike   +3 more
core   +3 more sources

The MCM-binding protein ETG1 aids sister chromatid cohesion required for postreplicative homologous recombination repair. [PDF]

open access: yesPLoS Genetics, 2010
The DNA replication process represents a source of DNA stress that causes potentially spontaneous genome damage. This effect might be strengthened by mutations in crucial replication factors, requiring the activation of DNA damage checkpoints to enable ...
Naoki Takahashi   +9 more
doaj   +1 more source

How to halve ploidy : lessons from budding yeast meiosis [PDF]

open access: yes, 2012
Maintenance of ploidy in sexually reproducing organisms requires a specialized form of cell division called meiosis that generates genetically diverse haploid gametes from diploid germ cells.
Arumugam, Prakash   +2 more
core   +1 more source

Pericentromeric Sister Chromatid Cohesion Promotes Kinetochore Biorientation [PDF]

open access: yesMolecular Biology of the Cell, 2009
Accurate chromosome segregation depends on sister kinetochores making bioriented attachments to microtubules from opposite poles. An essential regulator of biorientation is the Ipl1/Aurora B protein kinase that destabilizes improper microtubule–kinetochore attachments.
Tessie M, Ng   +3 more
openaire   +2 more sources

Chl1 DNA helicase regulates Scc2 deposition specifically during DNA-replication in Saccharomyces cerevisiae. [PDF]

open access: yesPLoS ONE, 2013
The conserved family of cohesin proteins that mediate sister chromatid cohesion requires Scc2, Scc4 for chromatin-association and Eco1/Ctf7 for conversion to a tethering competent state.
Soumya Rudra, Robert V Skibbens
doaj   +1 more source

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