Results 21 to 30 of about 17,939 (176)

Spindle assembly checkpoint protein dynamics reveal conserved and unsuspected roles in plant cell division. [PDF]

open access: yesPLoS ONE, 2009
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]

open access: yesCell Cycle, 2009
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
openaire   +2 more sources

Sustained spindle-assembly checkpoint response requires de novo transcription and translation of cyclin B1.

open access: yesPLoS ONE, 2010
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

Some assembly required: Redefining the mitotic checkpoint

open access: yesMolecular & 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

Noise resistance in the spindle assembly checkpoint [PDF]

open access: yesMolecular Systems Biology, 2006
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
openaire   +2 more sources

Kinetic framework of spindle assembly checkpoint signalling [PDF]

open access: yesNature Cell Biology, 2013
The mitotic spindle assembly checkpoint (SAC) delays anaphase onset until all chromosomes have attached to both spindle poles. Here, we investigated SAC signalling kinetics in response to acute detachment of individual chromosomes using laser microsurgery. Most detached chromosomes delayed anaphase until they had realigned to the metaphase plate.
Dick AE, Gerlich DW
openaire   +3 more sources

MAP kinase meets mitosis: A role for Raf Kinase Inhibitory Protein in spindle checkpoint regulation

open access: yesCell Division, 2007
Raf Kinase Inhibitory Protein (RKIP) is an evolutionarily conserved protein that functions as a modulator of signaling by the MAP kinase cascade.
Rosner Marsha
doaj   +1 more source

JAK2-CHK2 signaling safeguards the integrity of the mitotic spindle assembly checkpoint and genome stability

open access: yesCell Death and Disease, 2022
Checkpoint kinase 2 (CHK2) plays an important role in safeguarding the mitotic progression, specifically the spindle assembly, though the mechanism of regulation remains poorly understood.
Md Al Nayem Chowdhury   +5 more
doaj   +1 more source

TRIP13 is a protein-remodeling AAA+ ATPase that catalyzes MAD2 conformation switching

open access: yeseLife, 2015
The AAA+ family ATPase TRIP13 is a key regulator of meiotic recombination and the spindle assembly checkpoint, acting on signaling proteins of the conserved HORMA domain family.
Qiaozhen Ye   +5 more
doaj   +1 more source

Requirement for proteolysis in spindle assembly checkpoint silencing [PDF]

open access: yesCell Cycle, 2010
Anaphase initiation requires ubiquitin-dependent proteolysis of crucial substrates through activation of the ubiquitin ligase Anaphase promoting Complex/Cyclosome (ApC/C) in association with its coactivator Cdc20. To prevent chromosome segregation errors, effector proteins of a safeguard mechanism called spindle assembly checkpoint (SAC), Mad2 and ...
Visconti R.   +2 more
openaire   +4 more sources

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