Results 11 to 20 of about 91,169 (280)

Divergent polo box domains underpin the unique kinetoplastid kinetochore [PDF]

open access: yesOpen Biology, 2016
Kinetochores are macromolecular machines that drive eukaryotic chromosome segregation by interacting with centromeric DNA and spindle microtubules. While most eukaryotes possess conventional kinetochore proteins, evolutionarily distant kinetoplastid ...
Olga O. Nerusheva, Bungo Akiyoshi
doaj   +1 more source

Kinetochore-bound Mps1 regulates kinetochore–microtubule attachments via Ndc80 phosphorylation [PDF]

open access: yesJournal of Cell Biology, 2021
Dividing cells detect and correct erroneous kinetochore–microtubule attachments during mitosis, thereby avoiding chromosome missegregation. The Aurora B kinase phosphorylates microtubule-binding elements specifically at incorrectly attached kinetochores, promoting their release and providing another chance for proper attachments to form.
Krishna K. Sarangapani   +4 more
openaire   +2 more sources

Localization and Function of Budding Yeast CENP-A Depends upon Kinetochore Protein Interactions and Is Independent of Canonical Centromere Sequence

open access: yesCell Reports, 2014
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

The RZZ complex requires the N-terminus of KNL1 to mediate optimal Mad1 kinetochore localization in human cells [PDF]

open access: yesOpen Biology, 2015
The spindle assembly checkpoint is a surveillance mechanism that blocks anaphase onset until all chromosomes are properly attached to microtubules of the mitotic spindle.
Gina V. Caldas   +5 more
doaj   +1 more source

Calcium depletion destabilises kinetochore fibres by the removal of CENP-F from the kinetochore

open access: yesScientific Reports, 2017
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

Human Shugoshin Mediates Kinetochore-Driven Formation of Kinetochore Microtubules [PDF]

open access: yesCell Cycle, 2006
The conserved protein Shugoshin (Sgo) plays a role in the maintenance of centromeric cohesion in mitosis and meiosis. Human Shugoshin (hSgo) was first identified as an overexpressed protein in breast cancers. Here we demonstrate that hSgo mediates kinetochore-driven formation of kinetochore -microtubules (MTs) during bipolar spindle assembly.
Hideaki, Suzuki   +5 more
openaire   +2 more sources

Synergistic Control of Kinetochore Protein Levels by Psh1 and Ubr2.

open access: yesPLoS Genetics, 2016
The accurate segregation of chromosomes during cell division is achieved by attachment of chromosomes to the mitotic spindle via the kinetochore, a large multi-protein complex that assembles on centromeres.
Eva Herrero, Peter H Thorpe
doaj   +1 more source

Polo kinase recruitment via the constitutive centromere-associated network at the kinetochore elevates centromeric RNA.

open access: yesPLoS Genetics, 2020
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

Budding yeast kinetochore proteins, Chl4 and Ctf19, are required to maintain SPB-centromere proximity during G1 and late anaphase. [PDF]

open access: yesPLoS ONE, 2014
In the budding yeast, centromeres stay clustered near the spindle pole bodies (SPBs) through most of the cell cycle. This SPB-centromere proximity requires microtubules and functional kinetochores, which are protein complexes formed on the centromeres ...
Soumitra Sau   +3 more
doaj   +1 more source

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   +1 more source

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