Results 1 to 10 of about 407 (68)

Overlap microtubules link sister k-fibres and balance the forces on bi-oriented kinetochores

open access: yesNature Communications, 2016
During metaphase, k-fibre microtubules exert force on kinetochores, but there are also non-kinetochore microtubules close to kinetochores without a known function.
Maja Novak   +2 more
exaly   +2 more sources

Effects of malleable kinetochore morphology on measurements of intrakinetochore tension [PDF]

open access: yesOpen Biology, 2020
The distance between fluorescent spots formed by various kinetochore proteins (delta) is commonly interpreted as a manifestation of intrakinetochore tension (IKT) caused by microtubule-mediated forces.
Fioranna Renda   +6 more
doaj   +1 more source

Distinct Mitotic Functions of Nucleolar and Spindle-Associated Protein 1 (NuSAP1) Are Controlled by Two Consensus SUMOylation Sites

open access: yesCells, 2023
Nucleolar and Spindle-Associated Protein 1 (NuSAP1) is an important mitotic regulator, implicated in control of mitotic microtubule stability and chromosome segregation. NuSAP1 regulates these processes by interacting with several protein partners.
Michela Damizia   +3 more
doaj   +1 more source

Bub1 kinase in the regulation of mitosis

open access: yesAnimal Cells and Systems, 2021
Accurate chromosome segregation is required for cell survival and organismal development. During mitosis, the spindle assembly checkpoint acts as a safeguard to maintain the high fidelity of mitotic chromosome segregation by monitoring the attachment of ...
Taekyung Kim, Anton Gartner
doaj   +1 more source

Evolutionary cell biology of chromosome segregation: insights from trypanosomes [PDF]

open access: yesOpen Biology, 2013
Faithful transmission of genetic material is essential for the survival of all organisms. Eukaryotic chromosome segregation is driven by the kinetochore that assembles onto centromeric DNA to capture spindle microtubules and govern the movement of ...
Bungo Akiyoshi, Keith Gull
doaj   +1 more source

Structural basis of Stu2 recruitment to yeast kinetochores

open access: yeseLife, 2021
Chromosome segregation during cell division requires engagement of kinetochores of sister chromatids with microtubules emanating from opposite poles. As the corresponding microtubules shorten, these ‘bioriented’ sister kinetochores experience tension ...
Jacob A Zahm   +4 more
doaj   +1 more source

chTOG is a conserved mitotic error correction factor

open access: yeseLife, 2020
Accurate chromosome segregation requires kinetochores on duplicated chromatids to biorient by attaching to dynamic microtubules from opposite spindle poles, which exerts forces to bring kinetochores under tension.
Jacob A Herman   +2 more
doaj   +1 more source

Roles for the conserved spc105p/kre28p complex in kinetochore-microtubule binding and the spindle assembly checkpoint. [PDF]

open access: yesPLoS ONE, 2009
BackgroundKinetochores attach sister chromatids to microtubules of the mitotic spindle and orchestrate chromosome disjunction at anaphase. Although S. cerevisiae has the simplest known kinetochores, they nonetheless contain approximately 70 subunits that
Cinzia Pagliuca   +4 more
doaj   +1 more source

Phosphatases in Mitosis: Roles and Regulation

open access: yesBiomolecules, 2019
Mitosis requires extensive rearrangement of cellular architecture and of subcellular structures so that replicated chromosomes can bind correctly to spindle microtubules and segregate towards opposite poles.
Margarida Moura, Carlos Conde
doaj   +1 more source

Unique geometry of sister kinetochores in human oocytes during meiosis I may explain maternal age-associated increases in chromosomal abnormalities

open access: yesBiology Open, 2016
The first meiotic division in human oocytes is highly error-prone and contributes to the uniquely high incidence of aneuploidy observed in human pregnancies.
Jessica Patel   +3 more
doaj   +1 more source

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