Results 101 to 110 of about 36,378 (225)

Astrin-SKAP complex reconstitution reveals its kinetochore interaction with microtubule-bound Ndc80

open access: yeseLife, 2017
Chromosome segregation requires robust interactions between the macromolecular kinetochore structure and dynamic microtubule polymers. A key outstanding question is how kinetochore-microtubule attachments are modulated to ensure that bi-oriented ...
David M Kern   +4 more
doaj   +1 more source

Compare and contrast the reaction coordinate diagrams for chemical reactions and cytoskeletal force generators. [PDF]

open access: yes, 2013
Reaction coordinate diagrams are used to relate the free energy changes that occur during the progress of chemical processes to the rate and equilibrium constants of the process.
Scholey, Jonathan M
core   +2 more sources

Subcellular Euclidean distance measurements with multicolor fluorescence localization imaging in cultured cells

open access: yesSTAR Protocols, 2021
Summary: This protocol measures the 3D Euclidean distance (Δ3D) between two/three fluorescently labeled kinetochore components in fixed samples using Kinetochore Delta software (KiDv1.0.1, MATLAB based).
Tsvetelina E. Germanova   +4 more
doaj  

Holocentric Chromosomes of Luzula elegans Are Characterized by a Longitudinal Centromere Groove, Chromosome Bending, and a Terminal Nucleolus Organizer Region [PDF]

open access: yes, 2011
The structure of holocentric chromosomes was analyzed in mitotic cells of Luzula elegans. Light and scanning electron microscopy observations provided evidence for the existence of a longitudinal groove along each sister chromatid.
A. Houben   +53 more
core   +1 more source

Phosphatase-regulated recruitment of the spindle- and Kinetochore-Associated (Ska) Complex to kinetochores

open access: yesBiology Open, 2017
Kinetochores move chromosomes on dynamic spindle microtubules and regulate signaling of the spindle checkpoint. The Spindle and Kinetochore-Associated (Ska) Complex, a hexamer composed of two copies of Ska1, Ska2 and Ska3, has been implicated in both roles.
Sushama Sivakumar, Gary J. Gorbsky
openaire   +5 more sources

The dark side of centromeres: types, causes and consequences of structural abnormalities implicating centromeric DNA [PDF]

open access: yes, 2018
Centromeres are the chromosomal domains required to ensure faithful transmission of the genome during cell division. They have a central role in preventing aneuploidy, by orchestrating the assembly of several components required for chromosome separation.
Barra V., Fachinetti D.
core   +1 more source

The Ndc80 complex bridges two Dam1 complex rings

open access: yeseLife, 2017
Strong kinetochore-microtubule attachments are essential for faithful segregation of sister chromatids during mitosis. The Dam1 and Ndc80 complexes are the main microtubule binding components of the Saccharomyces cerevisiae kinetochore.
Jae ook Kim   +8 more
doaj   +1 more source

Kinetochore inactivation by expression of a repressive mRNA. [PDF]

open access: yes, 2017
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  

Polar Ejection Forces Promote the Conversion from Lateral to End-on Kinetochore-Microtubule Attachments on Mono-oriented Chromosomes

open access: yesCell Reports, 2015
Chromosome bi-orientation occurs after conversion of initial lateral attachments between kinetochores and spindle microtubules into stable end-on attachments near the cell equator. After bi-orientation, chromosomes experience tension from spindle forces,
Danica Drpic   +4 more
doaj   +1 more source

Kinetochores hang on for the ride [PDF]

open access: yesJournal of Cell Biology, 2010
Two studies reveal how kinetochores stay attached to dynamic microtubules.
openaire   +2 more sources

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