Results 51 to 60 of about 98,344 (203)
eLife, 2023 At each cell division, nanometer-scale components self-organize to build a micron-scale spindle. In mammalian spindles, microtubule bundles called kinetochore-fibers attach to chromosomes and focus into spindle poles.
Manuela Richter +5 more
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Adventures of the undead at kinetochores [PDF]
Molecular & Cellular Oncology, 2021 At the metaphase-to-anaphase transition, phosphatase activity feeds back to reverse early mitotic phosphorylation events. Our recent work indicates that the pseudokinase domain of the spindle checkpoint protein BUB1 (Budding Uninhibited by Benzimidazoles 1) mitotic checkpoint serine/threonine kinase B (BUB1B, BUBR1) maintains kinase-phosphatase balance
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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
eLife, 2019 Lagging chromosome is a hallmark of aneuploidy arising from errors in the kinetochore–spindle attachment in animal cells. However, kinetochore components and cellular phenotypes associated with kinetochore dysfunction are much less explored in plants ...
Elena Kozgunova +2 more
doaj +1 more source
Length-dependent anisotropic scaling of spindle shape [PDF]
, 2014 Spindle length varies dramatically across species and during early development to segregate chromosomes optimally. Both intrinsic factors, such as regulatory molecules, and extrinsic factors, such as cytoplasmic volume, determine spindle length scaling ...
Sébastien Besson +5 more
core +1 more source
Ybp2 associates with the central kinetochore of Saccharomyces cerevisiae and mediates proper mitotic progression. [PDF]
PLoS ONE, 2008 The spindle checkpoint ensures the accurate segregation of chromosomes by monitoring the status of kinetochore attachment to microtubules. Simultaneous mutations in one of several kinetochore and cohesion genes and a spindle checkpoint gene cause a ...
Kentaro Ohkuni +4 more
doaj +1 more source
A TOGgle for Tension at Kinetochores [PDF]
Cell, 2016 Differential stability of kinetochore-microtubule attachments at low versus high tension is critical for accurate chromosome segregation. Miller et al. find that a TOG domain microtubule-binding protein imparts intrinsic tension selectivity to kinetochore-microtubule attachments.
Dhanya K, Cheerambathur +2 more
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Identification of four unconventional kinetoplastid kinetochore proteins KKT22–25 in Trypanosoma brucei [PDF]
Open Biology, 2019 The kinetochore is a multi-protein complex that drives chromosome segregation in eukaryotes. It assembles onto centromere DNA and interacts with spindle microtubules during mitosis and meiosis. Although most eukaryotes have canonical kinetochore proteins,
Olga O. Nerusheva +2 more
doaj +1 more source
Balancing the kinetochore ledger [PDF]
Journal of Cell Biology, 2012 Reduction of polo-like kinase-1 (Plk1) at kinetochores as cells progress from prometaphase to metaphase is surprising given that the kinase is thought to stabilize kinetochore–microtubule (kt–MT) attachments. In this issue, Liu et al. (2012. J. Cell Biol.
Cane, Stuart, Maresca, Thomas J.
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Bub3p facilitates spindle checkpoint silencing in fission yeast [PDF]
, 2009 Although critical for spindle checkpoint signaling, the role kinetochores play in anaphase promoting complex (APC) inhibition remains unclear. Here we show that spindle checkpoint proteins are severely depleted from unattached kinetochores in fission ...
Hardwick, Kevin G. +13 more
core +1 more source