Results 41 to 50 of about 1,591,255 (208)

Chromosome Segregation Is Biased by Kinetochore Size [PDF]

, 2018
Chromosome missegregation during mitosis or meiosis is a hallmark of cancer and the main cause of prenatal death in humans. The gain or loss of specific chromosomes is thought to be random, with cell viability being essentially determined by selection ...
Aguiar, P, Almeida, A C, Damas, J, Drpic, D, Khodjakov, A, Larkin, D M, Lewin, H A, Maiato, H, Renda, F   +8 more
core   +2 more sources

ATR Activates the S-M Checkpoint during Unperturbed Growth to Ensure Sufficient Replication Prior to Mitotic Onset

Cell Reports, 2013
Cells must accurately replicate and segregate their DNA once per cell cycle in order to successfully transmit genetic information. During S phase in the presence of agents that cause replication stress, ATR-dependent checkpoints regulate origin firing ...
John Kenneth Eykelenboom, Emma Christina Harte, Lynn Canavan, Ana Pastor-Peidro, Irene Calvo-Asensio, Marta Llorens-Agost, Noel Francis Lowndes   +6 more
doaj   +1 more source

Rejuvenation of human mesenchymal stem cells using a nonintegrative and conditionally removable Sendai virus vector

Scientific Reports
Human mesenchymal stem cells (hMSCs) with extended lifespan and differentiation potential that can recapitulate in vivo characteristics could significantly contribute to basic research, drug development, and cell therapy.
Mitsuo Oshimura, Toshiaki Tabata, Narumi Uno, Shuta Takata, Genki Hichiwa, Iori Kanazawa, Takeshi Endo, Kazuhisa Honma, Yayan Wang, Kanako Kazuki, Haochen Tu, Yuichi Iida, Satoshi Abe, Yasuhiro Kazuki   +13 more
doaj   +1 more source

PTBP1 enforces ATR-CHK1 signaling determining the potency of CDC7 inhibitors

iScience, 2023
Summary: CDC7 kinase is crucial for DNA replication initiation and fork processing. CDC7 inhibition mildly activates the ATR pathway, which further limits origin firing; however, to date the relationship between CDC7 and ATR remains controversial.
Anja Göder, Aisling Quinlan, Michael D. Rainey, Declan Bennett, Daniel Shamavu, Jacqueline Corso, Corrado Santocanale   +6 more
doaj   +1 more source

Functional interplay between condensin I and topoisomerase IIα in single-molecule DNA compaction

Nature Communications
Condensin I and topoisomerase IIα (topo IIα) are chromosomal ATPases essential for mitotic chromosome assembly. Mechanistically how the two ATPases cooperate to assemble mitotic chromosomes remains unknown.
Yuko Tsubota, Keishi Shintomi, Kazuhisa Kinoshita, Yuki Masahara-Negishi, Yuuki Aizawa, Masami Shima, Tatsuya Hirano, Tomoko Nishiyama   +7 more
doaj   +1 more source

A global view of substrate phosphorylation and dephosphorylation during budding yeast mitotic exit

Microbial Cell, 2018
The cell cycle is the process by which a cell duplicates its DNA during S-phase and divides its chromosomes during M-phase, creating two genetically identical daughter cells.
Sandra A. Touati, Frank Uhlmann
doaj   +1 more source

Natural selection reduced diversity on human Y chromosomes [PDF]

, 2013
The human Y chromosome exhibits surprisingly low levels of genetic diversity. This could result from neutral processes if the effective population size of males is reduced relative to females due to a higher variance in the number of offspring from males
Lohmueller, Kirk E., Nielsen, Rasmus, Sayres, Melissa A. Wilson   +2 more
core   +5 more sources

Differential Expression of Placental Glucocorticoid Receptors and Growth Arrest-Specific Transcript 5 in Term and Preterm Pregnancies: Evidence for Involvement of Maternal Stress

Obstetrics and Gynecology International, 2014
Pregnancy-specific stress predicts birth outcomes. We hypothesized that there is a maternal stress-GR interaction that can influence fetal birth weight.
D. Mparmpakas, E. Zachariades, G. Sotiriadis, A. Goumenou, A. J. Harvey, Y. Gidron, E. Karteris   +6 more
doaj   +1 more source

The 160 bp insertion in the promoter of Rht-B1i plays a vital role in increasing wheat height

Frontiers in Plant Science, 2016
The extensive use of two alleles (Rht-B1b and Rht-D1b) at the Rht-1 locus in wheat allowed dramatic increases in yields, triggering the so-called Green Revolution. Here, we found that a new natural allelic variation (Rht-B1i) containing a single missense
Xueyuan eLou, Xin eLi, Aixia eLi, Mingyu ePu, Muhammad eShoaib, Dongcheng eLiu, Jiazhu eSun, Aimin eZhang, Wenlong eYang   +8 more
doaj   +1 more source

Simultaneous loading of PCR-based multiple fragments on mouse artificial chromosome vectors in DT40 cell for gene delivery

Scientific Reports, 2022
Homology-directed repair-mediated knock-in (HDR-KI) in combination with CRISPR-Cas9-mediated double strand break (DSB) leads to high frequency of site-specific HDR-KI. While this characteristic is advantageous for generating genetically modified cellular
Kyotaro Yamazaki, Kyosuke Matsuo, Akane Okada, Narumi Uno, Teruhiko Suzuki, Satoshi Abe, Shusei Hamamichi, Nanami Kishima, Shota Togai, Kazuma Tomizuka, Yasuhiro Kazuki   +10 more
doaj   +1 more source