Spindle assembly checkpoint protein dynamics reveal conserved and unsuspected roles in plant cell division. [PDF]
BACKGROUND: In eukaryotes, the spindle assembly checkpoint (SAC) ensures that chromosomes undergoing mitosis do not segregate until they are properly attached to the microtubules of the spindle.
Marie-Cécile Caillaud +9 more
doaj +1 more source
Spindle assembly checkpoint, aneuploidy and tumorigenesis [PDF]
Faithfully distributing chromosomes into two daughter cells in mitosis is essential for the maintenance of the integrity of the genome genome. The fidelity is achieved through a number of cellular processes among which is the spindle assembly checkpoint (SAC), an elaborate molecular pathway that monitors the attachment of microtubules to kinetochores ...
Min, Li, Pumin, Zhang
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Fission yeast bub1 is a mitotic centromere protein essential for the spindle checkpoint and the preservation of correct ploidy through mitosis [PDF]
The spindle checkpoint ensures proper chromosome segregation by delaying anaphase until all chromosomes are correctly attached to the mitotic spindle.
Javerzat, Jean-Paul +8 more
core +1 more source
Microtubule-targeting drugs induce mitotic delay at pro-metaphase by preventing the spindle assembly checkpoint to be satisfied. However, especially after prolonged treatments, cells can escape this arrest in a process called mitotic slippage.
Ana Lúcia Mena +2 more
doaj +1 more source
DNA damage and errors of accurate chromosome segregation lead to aneuploidy and foetal defects. DNA repair and the spindle assembly checkpoint (SAC) are the mechanisms developed to protect from these defects.
Jia‐Qian Ju +6 more
semanticscholar +1 more source
Bub1 is a fission yeast kinetochore scaffold protein, and is sufficient to recruit other spindle checkpoint proteins to ectopic sites on chromosomes [PDF]
The spindle checkpoint delays anaphase onset until all chromosomes have attached in a bi-polar manner to the mitotic spindle. Mad and Bub proteins are recruited to unattached kinetochores, and generate diffusible anaphase inhibitors.
Rischitor, Patricia E +8 more
core +1 more source
Some assembly required: Redefining the mitotic checkpoint
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
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Recent advances in understanding the role of Cdk1 in the Spindle Assembly Checkpoint
The goal of mitosis is to form two daughter cells each containing one copy of each mother cell chromosome, replicated in the previous S phase. To achieve this, sister chromatids held together back-to-back at their primary constriction, the centromere ...
Angela Flavia Serpico, D. Grieco
semanticscholar +1 more source
Latrunculin A delays anaphase onset in fission yeast by disrupting an ase1-independent pathway controlling mitotic spindle stability [PDF]
It has been proposed previously that latrunculin A, an inhibitor of actin polymerization, delays the onset of anaphase by causing spindle misorientation in fission yeast.
Meadows, John C., Millar, Jonathan B. A.
core +1 more source
Noise resistance in the spindle assembly checkpoint [PDF]
Genetically identical cells vary in the amount of expressed proteins even when growing under the same conditions. It is not yet clear how cellular information processing copes with such stochastic fluctuations in protein levels. Here we examine the capacity of the spindle assembly checkpoint to buffer temporal fluctuations in the expression of Cdc20, a
Doncic, Andreas +2 more
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