Results 41 to 50 of about 3,159 (153)

Regulation of chromosome congression : focus on the function of hSpindly and the kinetochore recruitment of the Ska complex [PDF]

open access: yes, 2011
Mitosis is a process in which cells divide their genetic materials equally into two daughter cells. During mitosis, specialized structures called kinetochores (KTs), located at the centromeric regions of chromosomes, are captured by microtubules (MTs ...
Chan, Ying Wai
core   +1 more source

Balancing the kinetochore ledger [PDF]

open access: yesJournal 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.
openaire   +2 more sources

Characterization of mitotic checkpoint complexes [PDF]

open access: yes, 2011
In eukaryotes, chromosome segregation critically depends on the establishment of productive contacts between kinetochores (KTs), specialized chromosomal structures, and the spindle microtubules (MTs).
Fava, Luca
core   +1 more source

Super-resolution kinetochore tracking reveals the mechanisms of human sister kinetochore directional switching

open access: yeseLife, 2015
The congression of chromosomes to the spindle equator involves the directed motility of bi-orientated sister kinetochores. Sister kinetochores bind bundles of dynamic microtubules and are physically connected through centromeric chromatin.
Nigel J Burroughs   +2 more
doaj   +1 more source

Feedback control of PLK1 by Apolo1 ensures accurate chromosome segregation

open access: yesCell Reports, 2021
Summary: Stable transmission of genetic material during cell division requires accurate chromosome segregation. PLK1 dynamics at kinetochores control establishment of correct kinetochore-microtubule attachments and subsequent silencing of the spindle ...
Leilei Xu   +21 more
doaj   +1 more source

The path of DNA in the kinetochore [PDF]

open access: yesCurrent Biology, 2006
The kinetochore is the protein-DNA complex at eukaryotic centromeres that functions as the attachment site for spindle microtubules. In budding yeast, the centromere spans 120 bp, there is a single microtubule per kinetochore, and the entire spindle is composed of 16 kinetochore microtubules plus four interpolar microtubules from each pole.
Bloom, Kerry   +2 more
openaire   +2 more sources

A satellite explosion in the genome of holocentric nematodes. [PDF]

open access: yesPLoS ONE, 2013
Centromere sequences in the genome are associated with the formation of kinetochores, where spindle microtubules grow in mitosis. Centromere sequences usually have long tandem repeats (satellites).
Juan A Subirana, Xavier Messeguer
doaj   +1 more source

Tension Management in the Kinetochore [PDF]

open access: yesCurrent Biology, 2010
The kinetochore is the protein machine built at the centromere that integrates mechanical force and chemical energy from dynamic microtubules into directed chromosome motion. The kinetochore also provides a powerful signaling function that is able to alter the properties of the spindle checkpoint and initiate a signal transduction cascade that leads to
Bloom, Kerry, Yeh, Elaine
openaire   +2 more sources

Kinetochore-microtubule error correction is driven by differentially regulated interaction modes

open access: yes, 2015
For proper chromosome segregation, sister kinetochores must interact with microtubules from opposite spindle poles (bi-orientation). To establish bi-orientation, aberrant kinetochore-microtubule attachments are disrupted (error correction) by aurora B ...
Zhang, T   +13 more
core   +1 more source

De novo assembly and single-molecule study of kinetochore-microtubule interactions

open access: yesFrontiers in Cell and Developmental Biology
Kinetochores are essential molecular machines composed of dozens of protein subcomplexes that assemble onto specialized centromeric nucleosomes during every cell cycle prior to mitosis.
Joshua D. Larson   +4 more
doaj   +1 more source

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