Results 41 to 50 of about 1,214,634 (307)

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

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

FEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee, Junho Jeong, Chae Yeong Lee, Hyunjoon Cho, Man Hwan Oh, Je Chul Lee, Jee‐Young Lee, Yangmee Kim   +7 more
wiley   +1 more source

Reverse painting highlights the origin of chromosome aberrations

, 2004
Reverse chromosome painting, as the opposite of forward chromosome painting, means that an abnormal chromosome of interest is recovered by flow sorting or by chromosome microdissection, amplified and labelled by DOP-PCR and hybridized onto normal ...
Blennow, E
core   +1 more source

ABL kinase‐dependent phosphorylation of SH proteins promotes their direct interaction with CRK family SH2 domains

FEBS Letters, EarlyView.
CT10 regulator of kinase (CRK) and CRK‐Like (CRKL) are signaling adaptors driving cell adhesion, motility, differentiation, and proliferation. SH2‐domain containing (SH) proteins are enriched in YXXP motifs which when phosphorylated create preferred binding sites for CRK family SH2 domains.
Phoebe M. Cousens, Brendan W. Chandler, Anna M. Schmoker, Jaye L. Weinert, Charlotte A. Kearns, Warren T. Yacawych, Amila Šemić, Alicia M. Ebert, Bryan A. Ballif   +8 more
wiley   +1 more source

The MatP/matS Site-Specific System Organizes the Terminus Region of the E. coli Chromosome into a Macrodomain [PDF]

, 2008
The organization of the Escherichia coli chromosome into insulated macrodomains influences the segregation of sister chromatids and the mobility of chromosomal DNA.
El Karoui, Meriem, Schbath, Sophie, Petit, Marie-Agnès, Mercier, Romain, Robin, Stéphane, Espéli, Olivier, Boccard, Frédéric, Petit, Marie Agnès   +7 more
core   +1 more source

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

Investigating transcription factor dynamics in health and disease using FRAP

FEBS Letters, EarlyView.
FRAP analysis of GFP‐tagged transcription factors reveals how molecular mobility and target engagement change in response to drug treatment. By combining live‐cell imaging, quantitative model fitting, and statistical analysis, this approach uncovers transcription factor dynamics linked to disease mechanisms, providing a powerful framework for ...
Kannan Govindaraj, Carolina Vazquez Garzon, Jose Joaquin Velasco, Janine N. Post   +3 more
wiley   +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

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

A Chromosome RNAissance [PDF]

Cell, 2002
In RNA-mediated interference (RNAi), double-stranded RNAs (dsRNAs) target complementary mRNAs for degradation. New work demonstrates that essential chromosomal functions are mediated through RNAi protein components and short RNAs, which alter chromosome function at specific DNA loci via histone modification.
Dernburg, Abby F., Karpen, Gary H.
openaire   +2 more sources