Results 51 to 60 of about 64,230 (279)
Detection of Ultrafine Anaphase Bridges [PDF]
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
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]
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 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]
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
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
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
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]
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
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