Results 51 to 60 of about 64,230 (279)

Detection of Ultrafine Anaphase Bridges [PDF]

open access: yes, 2017
Ultrafine anaphase bridges (UFBs) are thin DNA threads linking the separating sister chromatids in the anaphase of mitosis. UFBs are thought to form when topological DNA entanglements between two chromatids are not resolved prior to anaphase onset.
Bizard, Anna H   +2 more
openaire   +4 more sources

A Regulatory Switch Alters Chromosome Motions at the Metaphase-to-Anaphase Transition

open access: yesCell Reports, 2016
To achieve chromosome segregation during mitosis, sister chromatids must undergo a dramatic change in their behavior to switch from balanced oscillations at the metaphase plate to directed poleward motion during anaphase.
Kuan-Chung Su   +5 more
doaj   +1 more source

LET-99 functions in the astral furrowing pathway, where it is required for myosin enrichment in the contractile ring. [PDF]

open access: yes, 2017
The anaphase spindle determines the position of the cytokinesis furrow, such that the contractile ring assembles in an equatorial zone between the two spindle poles.
Price, Kari L, Rose, Lesilee S
core   +1 more source

Condensin Relocalization from Centromeres to Chromosome Arms Promotes Top2 Recruitment during Anaphase

open access: yesCell Reports, 2015
Condensin is a conserved chromosomal complex necessary to promote mitotic chromosome condensation and sister chromatid resolution during anaphase. Here, we report that yeast condensin binds to replicated centromere regions.
Joanne Leonard   +6 more
doaj   +1 more source

Bub1-mediated adaptation of the spindle checkpoint. [PDF]

open access: yesPLoS 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

Waiting for Anaphase

open access: yesCell, 2000
Although all the pieces of the puzzle may seem to be in place, there are still several key processes that have been widely posited but remain experimentally unverified. What attracts Mad2 to the kinetochore and what causes its release? Is it Mad1, as has been hypothesized from its apparent loss (along with Mad2) from the kinetochore after microtubule ...
Don W. Cleveland, Jagesh V. Shah
openaire   +3 more sources

Bloom's syndrome and PICH helicases cooperate with topoisomerase IIα in centromere disjunction before anaphase.

open access: yesPLoS ONE, 2012
Centromeres are specialized chromosome domains that control chromosome segregation during mitosis, but little is known about the mechanisms underlying the maintenance of their integrity.
Sébastien Rouzeau   +8 more
doaj   +1 more source

CENP-F-dependent DRP1 function regulates APC/C activity during oocyte meiosis I

open access: yesNature 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

Securin Is Not Required for Chromosomal Stability in Human Cells [PDF]

open access: yes, 2005
Abnormalities of chromosome number are frequently observed in cancers. The mechanisms regulating chromosome segregation in human cells are therefore of great interest.
Azofeifa   +32 more
core   +4 more sources

Early onset of APC/C activity renders SAC inefficient in mouse embryos

open access: yesFrontiers in Cell and Developmental Biology
Control 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

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