Results 31 to 40 of about 137,810 (238)
Male meiotic spindle features that efficiently segregate paired and lagging chromosomes
eLife, 2020 Chromosome segregation during male meiosis is tailored to rapidly generate multitudes of sperm. Little is known about mechanisms that efficiently partition chromosomes to produce sperm.
Gunar Fabig +9 more
doaj +1 more source
Pathogenic mutations in the chromokinesin KIF22 disrupt anaphase chromosome segregation
eLife, 2022 The chromokinesin KIF22 generates forces that contribute to mitotic chromosome congression and alignment. Mutations in the α2 helix of the motor domain of KIF22 have been identified in patients with abnormal skeletal development, and we report the ...
Alex F Thompson +7 more
doaj +1 more source
bioRxiv, 2019 Spindle microtubules, whose dynamics vary over time and at different locations, cooperatively drive chromosome segregation. Measurements of microtubule dynamics and spindle ultrastructure can provide insight into the behaviors of microtubules, helping ...
Che-Hang Yu +8 more
semanticscholar +1 more source
Proceedings of the National Academy of Sciences, 1996 Despite their varied appearances, all mitotic spindles have a similar architecture: they are organized as two half spindles, and the microtubules in each half spindle are of the same polarity, with many of the plus ends of the microtubules that grow out from the poles interacting with chromosomes or the microtubules of the other half spindle.
W Z, Cande, H J, Wein
openaire +2 more sources
SUMO targets the APC/C to regulate transition from metaphase to anaphase
Nature Communications, 2018 Signal transduction by small ubiquitin-like modifier (SUMO) regulates a myriad of nuclear processes. Here we report on the role of SUMO in mitosis in human cell lines. Knocking down the SUMO conjugation machinery results in a delay in mitosis and defects
K. Eifler +7 more
semanticscholar +1 more source
Keeping Order in Anaphase [PDF]
Developmental Cell, 2015 The critical components of chromosome segregation machinery are well established, but how they orchestrate the relative order of events during mitosis remains unclear. Kamenz et al. (2015) now report in Molecular Cell quantitative data suggesting competing networks and adaptive thresholds in the control of mitotic exit by the anaphase-promoting complex.
openaire +3 more sources
Some assembly required: Redefining the mitotic checkpoint
Molecular & Cellular Oncology, 2017 The spindle assembly checkpoint (also known as the spindle or mitotic checkpoint) is a surveillance system that ensures fidelity of chromosome segregation.
John C. Meadows, Jonathan B. A. Millar
doaj +1 more source
Bub1-mediated adaptation of the spindle checkpoint. [PDF]
PLoS Genetics, 2011 During cell division, the spindle checkpoint ensures accurate chromosome segregation by monitoring the kinetochore-microtubule interaction and delaying the onset of anaphase until each pair of sister chromosomes is properly attached to microtubules.
Greicy H Goto +4 more
doaj +1 more source
CENP-F-dependent DRP1 function regulates APC/C activity during oocyte meiosis I
Nature Communications, 2022 Spindle assembly checkpoint controls anaphase onset and guarantees appropriate chromosome segregation. Here, the authors report that dynamin-related protein 1 is recruited to kinetochores by CENP-F to regulate metaphase-to-anaphase transition by ...
Cheng-Jie Zhou +8 more
doaj +1 more source
Early onset of APC/C activity renders SAC inefficient in mouse embryos
Frontiers in Cell and Developmental BiologyControl mechanisms of spindle assembly and chromosome segregation are vital for preventing aneuploidy during cell division. The mammalian germ cells and embryos are prone to chromosome segregation errors, and the resulting aneuploidy is a major cause of ...
Adela Horakova +9 more
doaj +1 more source