Results 81 to 90 of about 118,231 (380)
Centromeres in nuclear architecture [PDF]
Cell Cycle, 2013 The centromere is a unique region of the chromosome that defines the site of kinetochore assembly and is essential for the faithful segregation of the sister chromatids into the 2 daughter cells. While the kinetochore only forms as a transient structure during mitosis, the centromere persists as a stable domain throughout the cell cycle, bound by ...
Patrick Heun, Jan Padeken
openaire +3 more sources
HIM-10 is required for kinetochore structure and function on Caenorhabditis elegans holocentric chromosomes. [PDF]
, 2001 Macromolecular structures called kinetochores attach and move chromosomes within the spindle during chromosome segregation. Using electron microscopy, we identified a structure on the holocentric mitotic and meiotic chromosomes of Caenorhabditis elegans ...
Albertson +33 more
core +2 more sources
Molecular Oncology, EarlyView.Gao et al. report that circular DNA molecules created as by‐products of V(D)J recombination during lymphocyte maturation (ESCs) can replicate and be retained for much longer than previously thought in healthy cells. In BCP‐ALL cells, increased ESC abundance correlates with a greater chance of relapse likely mediated by their ability to induce genome ...
Davide Pradella, Andrea Ventura
wiley +1 more source
bioRxiv, 2019 Centromeres are chromosomal regions that serve as platforms for kinetochore assembly and spindle attachments, ensuring accurate chromosome segregation during cell division.
Y. Fang +15 more
semanticscholar +1 more source
Centromere repositioning in mammals [PDF]
Heredity, 2011 The evolutionary history of chromosomes can be tracked by the comparative hybridization of large panels of bacterial artificial chromosome clones. This approach has disclosed an unprecedented phenomenon: 'centromere repositioning', that is, the movement of the centromere along the chromosome without marker order variation.
M. Rocchi +4 more
openaire +4 more sources
Catastrophic chromosomal restructuring during genome elimination in plants. [PDF]
, 2015 Genome instability is associated with mitotic errors and cancer. This phenomenon can lead to deleterious rearrangements, but also genetic novelty, and many questions regarding its genesis, fate and evolutionary role remain unanswered.
Bradnam, Keith R +9 more
core +1 more source
Survivin and Aurora Kinase A control cell fate decisions during mitosis
Molecular Oncology, EarlyView.Aurora A interacts with survivin during mitosis and regulates its centromeric role. Loss of Aurora A activity mislocalises survivin, the CPC and BubR1, leading to disruption of the spindle checkpoint and triggering premature mitotic exit, which we refer to as ‘mitotic slippage’.
Hana Abdelkabir +2 more
wiley +1 more source
Centromere repositioning causes inversion of meiosis and generates a reproductive barrier
Proceedings of the National Academy of Sciences of the United States of America, 2019 Significance Mutations in inner kinetochore components induce centromere repositioning without alteration in the centromeric DNA sequence, revealing a feedback mechanism underlying the high epigenetic stability of the centromere.
Min Lu, Xiangwei He
semanticscholar +1 more source
Arthritis Care &Research, EarlyView.Objective Systemic sclerosis (SSc) is a rare autoimmune disease characterized by tissue fibrosis, vasculopathy, and immune dysregulation. Our objectives were to quantify the overall and site‐specific cancer risks in patients with SSc compared to the general population, examine temporal trends in cancer incidence following SSc diagnosis, and explore ...
Jihyun Na +4 more
wiley +1 more source
Structure and Stability of Telocentric Chromosomes in Wheat. [PDF]
PLoS ONE, 2015 In most eukaryotes, centromeres assemble at a single location per chromosome. Naturally occurring telocentric chromosomes (telosomes) with a terminal centromere are rare but do exist.
Dal-Hoe Koo +3 more
doaj +1 more source