Results 41 to 50 of about 947,032 (193)
Sororin actively maintains sister chromatid cohesion. [PDF]
EMBO J, 2016 Abstract Cohesion between sister chromatids is established during DNA replication but needs to be maintained to enable proper chromosome–spindle attachments in mitosis or meiosis. Cohesion is mediated by cohesin, but also depends on cohesin acetylation and sororin. Sororin contributes to cohesion by stabilizing cohesin on DNA. Sororin
Ladurner R +8 more
europepmc +5 more sources
Bub1 autophosphorylation feeds back to regulate kinetochore docking and promote localized substrate phosphorylation [PDF]
, 2015 During mitosis, Bub1 kinase phosphorylates histone H2A-T120 to promote centromere sister chromatid cohesion through recruitment of shugoshin (Sgo) proteins. The regulation and dynamics of H2A-T120 phosphorylation are poorly understood. Using quantitative
Lajeunesse, Audrey +13 more
core +1 more source
Sequential loading of cohesin subunits during the first meiotic prophase of grasshoppers.
PLoS Genetics, 2007 The cohesin complexes play a key role in chromosome segregation during both mitosis and meiosis. They establish sister chromatid cohesion between duplicating DNA molecules during S-phase, but they also have an important role during postreplicative double-
Ana M Valdeolmillos +10 more
doaj +1 more source
Modifying sister chromatid cohesion for meiosis [PDF]
Journal of Cell Science, 2004 Meiosis produces haploid gametes from diploid cells in two stages that in many ways resemble mitosis. However, the regulatory mechanisms governing kinetochore orientation and cohesion at the first meiotic division are different from those at mitosis: sister kinetochores are pulled forwards from the same spindle pole at metaphase, and centromeric ...
openaire +2 more sources
Cdk1 inactivation terminates mitotic checkpoint surveillance and stabilizes kinetochore attachments in anaphase [PDF]
, 2014 Two mechanisms safeguard the bipolar attachment of chromosomes in mitosis. A correction mechanism destabilizes erroneous attachments that do not generate tension across sister kinetochores [1].
Vázquez-Novelle, María Dolores +6 more
core +1 more source
A Live-Cell Imaging Approach for Measuring DNA Replication Rates
Cell Reports, 2018 Summary: We describe a simple and direct approach to measure the progression of single DNA replication forks in living cells by monitoring two fluorescently labeled loci downstream of an origin of replication.
Daniel Dovrat +5 more
doaj +1 more source
The Making and Breaking of Sister Chromatid Cohesion [PDF]
Cell, 2001 The picture that emerges from recent studies is that of an intricate regulatory network, the purpose of which is to ensure that sister chromatids go their separate ways during anaphase. The more we know about the process, the more challenging our next questions become.
openaire +2 more sources
Sister Chromatid Cohesion and Aneuploidy [PDF]
, 2012 In all living organisms, cells arise from the division of a pre-existing cell and inherit one copy of the genome identical to that of the mother cell. Any defect in chromosome segregation can lead to aneuploidy via chromosome gain or loss, and consequently to genetic instability, thereby paving the way for malignant growth and cancer.
Watrin, Erwan, Prigent, Claude
openaire +2 more sources
Cohesin without cohesion: a novel role for Pds5 in Saccharomyces cerevisiae.
PLoS ONE, 2014 High fidelity chromosome segregation during mitosis requires that cells identify the products of DNA replication during S-phase and then maintain that identity until anaphase onset.
Kevin Tong, Robert V Skibbens
doaj +1 more source
Protocol for High-Throughput Analysis of Sister-Chromatids Contacts
STAR Protocols, 2020 Summary: Sister chromatid interactions are a key step to ensure the successful segregation of sister chromatids after replication. Our knowledge about this phenomenon is mostly based on microscopy approaches, which have some constraints such as ...
Elena Espinosa +2 more
doaj +1 more source