Results 41 to 50 of about 1,789 (148)

CENP-W plays a role in maintaining bipolar spindle structure.

open access: yesPLoS ONE, 2014
The CENP-W/T complex was previously reported to be required for mitosis. HeLa cells depleted of CENP-W displayed profound mitotic defects, with mitotic timing delay, disorganized prometaphases and multipolar spindles as major phenotypic consequences.
Agnieszka Kaczmarczyk, Kevin F Sullivan
doaj   +1 more source

p16(INK4a) prevents centrosome dysfunction and genomic instability in primary cells. [PDF]

open access: yesPLoS Biology, 2006
Aneuploidy, frequently observed in premalignant lesions, disrupts gene dosage and contributes to neoplastic progression. Theodor Boveri hypothesized nearly 100 years ago that aneuploidy was due to an increase in centrosome number (multipolar mitoses) and
Kimberly M McDermott   +5 more
doaj   +1 more source

OLA1 is responsible for normal spindle assembly and SAC activation in mouse oocytes [PDF]

open access: yesPeerJ, 2020
Background OLA1 is a member of the GTPase protein family; unlike other members, it possess both GTPase and ATPase activities, and can bind and hydrolyze ATP more efficiently than GTP.
Di Xie   +4 more
doaj   +2 more sources

Supersymmetric spindles [PDF]

open access: yes, 2021
In the context of holography, we analyse aspects of supersymmetric geometries based on two-dimensional orbifolds known as spindles. By analysing spin$^c$ spinors on a spindle with an azimuthal rotation symmetry we show that under rather general conditions there are just two possibilities, called the `twist' and the `anti-twist', which are determined by
arxiv   +1 more source

A mutation in the centriole-associated protein centrin causes genomic instability via increased chromosome loss in Chlamydomonas reinhardtii

open access: yesBMC Biology, 2005
Background The role of centrioles in mitotic spindle function remains unclear. One approach to investigate mitotic centriole function is to ask whether mutation of centriole-associated proteins can cause genomic instability. Results We addressed the role
Marshall Wallace F, Zamora Ivan
doaj   +1 more source

Human Cdc14B promotes progression through mitosis by dephosphorylating Cdc25 and regulating Cdk1/cyclin B activity. [PDF]

open access: yesPLoS ONE, 2011
Entry into and progression through mitosis depends on phosphorylation and dephosphorylation of key substrates. In yeast, the nucleolar phosphatase Cdc14 is pivotal for exit from mitosis counteracting Cdk1-dependent phosphorylations.
Indra Tumurbaatar   +4 more
doaj   +1 more source

Unveil Sleep Spindles with Concentration of Frequency and Time [PDF]

open access: yesarXiv, 2023
Objective: Sleep spindles contain crucial brain dynamics information. We introduce the novel non-linear time-frequency analysis tool 'Concentration of Frequency and Time' (ConceFT) to create an interpretable automated algorithm for sleep spindle annotation in EEG data and to measure spindle instantaneous frequencies (IFs).
arxiv  

The Genotoxicity of Vitamin C in vitro

open access: yesBiomolecules & Biomedicine, 2008
The genotoxic effects of Vitamin C (ascorbic acid) on human lymphocytes in vitro were estimated by analyzing and identifying various chromosome abnormalities, in relation to the concentration of Vitamin C.
Hilada Nefić
doaj   +1 more source

Mild replication stress causes premature centriole disengagement via a sub-critical Plk1 activity under the control of ATR-Chk1

open access: yesNature Communications, 2023
A tight synchrony between the DNA and centrosome cycle is essential for genomic integrity. Centriole disengagement, which licenses centrosomes for duplication, occurs normally during mitotic exit. We recently demonstrated that mild DNA replication stress
Devashish Dwivedi   +2 more
doaj   +1 more source

Localization and function of Kinesin-5-like proteins during assembly and maintenance of mitotic spindles in Silvetia compressa

open access: yesBMC Research Notes, 2009
Background Kinesin-5 (Eg-5) motor proteins are essential for maintenance of spindle bipolarity in animals. The roles of Kinesin-5 proteins in other systems, such as Arabidopsis, Dictyostelium, and sea urchin are more varied.
Miller Anne   +2 more
doaj   +1 more source

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