Results 41 to 50 of about 40,318 (318)
Adventures of the undead at kinetochores [PDF]
Molecular & Cellular Oncology, 2021 At the metaphase-to-anaphase transition, phosphatase activity feeds back to reverse early mitotic phosphorylation events. Our recent work indicates that the pseudokinase domain of the spindle checkpoint protein BUB1 (Budding Uninhibited by Benzimidazoles 1) mitotic checkpoint serine/threonine kinase B (BUB1B, BUBR1) maintains kinase-phosphatase balance
openaire +4 more sources
Tumor Biology, 2017 Spindle and kinetochore–associated protein 1 is a microtubule-binding subcomplex of the outer kinetochore that is essential for proper chromosome segregation.
Kai Wang +5 more
doaj +1 more source
The Dam1 ring binds to the E-hook of tubulin and diffuses along the microtubule. [PDF]
, 2011 There has been much effort in recent years aimed at understanding the molecular mechanism by which the Dam1 kinetochore complex is able to couple microtubule depolymerization to poleward movement. Both a biased diffusion and a forced walk model have been
Barnes, Georjana +7 more
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Budding yeast kinetochore proteins, Chl4 and Ctf19, are required to maintain SPB-centromere proximity during G1 and late anaphase. [PDF]
PLoS 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
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Splicing factors Sf3A2 and Prp31 have direct roles in mitotic chromosome segregation [PDF]
, 2018 Several studies have shown that RNAi-mediated depletion of splicing factors (SFs) results in mitotic abnormalities. However, it is currently unclear whether these abnormalities reflect defective splicing of specific pre-mRNAs or a direct role of the SFs ...
Alushin +74 more
core +1 more source
Chromosome Oscillations in Mitosis [PDF]
, 2005 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
Visualizing kinetochore architecture [PDF]
Current Opinion in Structural Biology, 2011 Kinetochores are large macromolecular assemblies that link chromosomes to spindle microtubules (MTs) during mitosis. Here we review recent advances in the study of core MT-binding kinetochore complexes using electron microcopy methods in vitro and nanometer-accuracy fluorescence microscopy in vivo.
Eva Nogales +2 more
openaire +3 more sources
Ybp2 associates with the central kinetochore of Saccharomyces cerevisiae and mediates proper mitotic progression. [PDF]
PLoS ONE, 2008 The spindle checkpoint ensures the accurate segregation of chromosomes by monitoring the status of kinetochore attachment to microtubules. Simultaneous mutations in one of several kinetochore and cohesion genes and a spindle checkpoint gene cause a ...
Kentaro Ohkuni +4 more
doaj +1 more source
Exotic mitotic mechanisms [PDF]
, 2012 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
Exploring Plant Meiosis: Insights from the Kinetochore Perspective
Current Issues in Molecular Biology, 2023 The central player for chromosome segregation in both mitosis and meiosis is the macromolecular kinetochore structure, which is assembled by >100 structural and regulatory proteins on centromere DNA.
Kang-Di Zhou +8 more
doaj +1 more source