Results 21 to 30 of about 44,237 (280)
Chromosome Oscillations in Mitosis [PDF]
Successful cell division requires a tight regulation of chromosome motion via the activity of molecular motors. Many of the key players at the origin of the forces generating the movement have been identified, but their spatial and temporal organization ...
A. P. Joglekar+8 more
core +2 more sources
Calcium depletion destabilises kinetochore fibres by the removal of CENP-F from the kinetochore
The attachment of spindle fibres to the kinetochore is an important process that ensures successful completion of the cell division. The Ca2+ concentration increases during the mitotic phase and contributes microtubule stability. However, its role in the
Rinyaporn Phengchat+3 more
doaj +1 more source
In many eukaryotes, the centromere is epigenetically specified and not strictly defined by sequence. In contrast, budding yeast has a specific 125 bp sequence required for kinetochore function.
Kung-Hsien Ho+3 more
doaj +1 more source
Co-silencing of human Bub3 and dynein highlights an antagonistic relationship in regulating kinetochore-microtubule attachments [PDF]
We previously reported that the spindle assembly checkpoint protein Bub3 is involved in regulating kinetochore-microtubule (KT-MT) attachments. Also, Bub3 was reported to interact with the microtubule motor protein dynein.
Barisic+27 more
core +1 more source
Exotic mitotic mechanisms [PDF]
The emergence of eukaryotes around two billion years ago provided new challenges for the chromosome segregation machineries: the physical separation of multiple large and linear chromosomes from the microtubule-organizing centres by the nuclear envelope.
Drechsler, Hauke, McAinsh, Andrew D.
core +1 more source
The kinetochore, a multi-protein complex assembled on centromeres, is essential to segregate chromosomes during cell division. Deficiencies in kinetochore function can lead to chromosomal instability and aneuploidy-a hallmark of cancer cells. Kinetochore
Guðjón Ólafsson, Peter H Thorpe
doaj +1 more source
Bod1, a novel kinetochore protein required for chromosome biorientation [PDF]
We have combined the proteomic analysis of Xenopus laevis in vitro–assembled chromosomes with RNA interference and live cell imaging in HeLa cells to identify novel factors required for proper chromosome segregation. The first of these is Bod1, a protein
Andersen, Jens S.+7 more
core +3 more sources
Spatiotemporal dynamics of Spc105 regulates the assembly of the Drosophila kinetochore [PDF]
The formation of kinetochores shortly before each cell division is a prerequisite for proper chromosome segregation. The synchronous mitoses of Drosophila syncytial embryos have provided an ideal in vivo system to follow kinetochore assembly kinetics and
Zsolt Venkei+7 more
doaj +1 more source
Kinetochore inactivation by expression of a repressive mRNA. [PDF]
Differentiation programs such as meiosis depend on extensive gene regulation to mediate cellular morphogenesis. Meiosis requires transient removal of the outer kinetochore, the complex that connects microtubules to chromosomes.
Chen, Jingxun+8 more
core +2 more sources
CENP-F stabilizes kinetochore-microtubule attachments and limits dynein stripping of corona cargoes [PDF]
Accurate chromosome segregation demands efficient capture of microtubules by kinetochores and their conversion to stable bioriented attachments that can congress and then segregate chromosomes.
Allan+80 more
core +1 more source