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Anaphase B [PDF]

open access: yesBiology, 2016
Anaphase B spindle elongation is characterized by the sliding apart of overlapping antiparallel interpolar (ip) microtubules (MTs) as the two opposite spindle poles separate, pulling along disjoined sister chromatids, thereby contributing to chromosome ...
Jonathan M. Scholey   +2 more
doaj   +10 more sources

Spatiotemporal control of mitotic exit during anaphase by an aurora B-Cdk1 crosstalk

open access: yeseLife, 2019
According to the prevailing ‘clock’ model, chromosome decondensation and nuclear envelope reformation when cells exit mitosis are byproducts of Cdk1 inactivation at the metaphase-anaphase transition, controlled by the spindle assembly checkpoint. However,
Olga Afonso   +9 more
doaj   +2 more sources

Anaphase A: Disassembling Microtubules Move Chromosomes toward Spindle Poles

open access: yesBiology, 2017
The separation of sister chromatids during anaphase is the culmination of mitosis and one of the most strikingly beautiful examples of cellular movement.
Charles L. Asbury
doaj   +2 more sources

Cdk1 inactivation induces post-anaphase-onset spindle migration and membrane protrusion required for extreme asymmetry in mouse oocytes

open access: yesNature Communications, 2018
Female meiotic divisions are asymmetric with the formation of large oocytes and small polar bodies, thought to result from cortical spindle placement before anaphase.
Zhe Wei   +3 more
doaj   +2 more sources

Chromosome Bridges Maintain Kinetochore-Microtubule Attachment throughout Mitosis and Rarely Break during Anaphase. [PDF]

open access: yesPLoS ONE, 2016
Accurate chromosome segregation during cell division is essential to maintain genome stability, and chromosome segregation errors are causally linked to genetic disorders and cancer.
Judit Pampalona   +6 more
doaj   +2 more sources

Single-motor and multi-motor motility properties of kinesin-6 family members

open access: yesBiology Open, 2022
Kinesin motor proteins are responsible for orchestrating a variety of microtubule-based processes including intracellular transport, cell division, cytoskeletal organization, and cilium function.
Andrew Poulos   +2 more
doaj   +1 more source

Mechanical Mechanisms of Chromosome Segregation

open access: yesCells, 2021
Chromosome segregation—the partitioning of genetic material into two daughter cells—is one of the most crucial processes in cell division. In all Eukaryotes, chromosome segregation is driven by the spindle, a microtubule-based, self-organizing ...
Maya I. Anjur-Dietrich   +2 more
doaj   +1 more source

Microtubule rescue at midzone edges promotes overlap stability and prevents spindle collapse during anaphase B

open access: yeseLife, 2022
During anaphase B, molecular motors slide interpolar microtubules to elongate the mitotic spindle, contributing to the separation of chromosomes. However, sliding of antiparallel microtubules reduces their overlap, which may lead to spindle breakage ...
Manuel Lera-Ramirez   +2 more
doaj   +1 more source

Blocking Protein Phosphatase 1 [PP1] Prevents Loss of Tether Elasticity in Anaphase Crane-Fly Spermatocytes

open access: yesFrontiers in Molecular Biosciences, 2021
In normal anaphase cells, telomeres of each separating chromosome pair are connected to each other by tethers. Tethers are elastic at the start of anaphase: arm fragments cut from anaphase chromosomes in early anaphase move across the equator to the ...
Arthur Forer   +7 more
doaj   +1 more source

PP1 promotes cyclin B destruction and the metaphase–anaphase transition by dephosphorylating CDC20

open access: yesbioRxiv, 2020
Ubiquitin-dependent proteolysis of cyclin B and securin initiates sister chromatid segregation and anaphase. The anaphase promoting complex/cyclosome (APC/C) and its co-activator CDC20 form the main ubiquitin E3 ligase for these proteins.
James M. Bancroft   +6 more
semanticscholar   +1 more source

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