Results 81 to 90 of about 1,361,336 (348)

Controlled Shock Shells and Intracluster Fusion Reactions in the Explosion of Large Clusters

open access: yes, 2006
The ion phase-space dynamics in the Coulomb explosion of very large ($\sim 10^6 - 10^7$ atoms) deuterium clusters can be tailored using two consecutive laser pulses with different intensities and an appropriate time delay.
Fonseca, R. A.   +3 more
core   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Cell fusion and plasticity [PDF]

open access: yesCytotechnology, 2003
Cell plasticity is a central issue in stem cell biology. In many recent discussions, observation of cell fusion has been seen as a confounding factor which calls into question published results concerning cell plasticity of, particularly, adult stem cells.
Joseph J, Lucas, Naohiro, Terada
openaire   +2 more sources

Post-transcriptional regulation of satellite cell quiescence by TTP-mediated mRNA decay. [PDF]

open access: yes, 2015
Skeletal muscle satellite cells in their niche are quiescent and upon muscle injury, exit quiescence, proliferate to repair muscle tissue, and self-renew to replenish the satellite cell population.
Blackshear, Perry J   +7 more
core   +2 more sources

Multiple ETS family transcription factors bind mutant p53 via distinct interaction regions

open access: yesFEBS Letters, EarlyView.
Mutant p53 gain‐of‐function is thought to be mediated by interaction with other transcription factors. We identify multiple ETS transcription factors that can bind mutant p53 and found that this interaction can be promoted by a PXXPP motif. ETS proteins that strongly bound mutant p53 were upregulated in ovarian cancer compared to ETS proteins that ...
Stephanie A. Metcalf   +6 more
wiley   +1 more source

Multiple rotavirus species encode fusion-associated small transmembrane (FAST) proteins with cell type-specific activity

open access: yesJournal of Virology
Fusion-associated small transmembrane (FAST) proteins are viral nonstructural proteins that mediate cell-cell fusion to form multinucleated syncytia. We previously reported that human species B rotavirus NSP1-1 is a FAST protein that induces syncytia in ...
Kylie Sartalamacchia   +3 more
doaj   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

open access: yesFEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Cell fusion induced senescence

open access: yesAging, 2014
Cellular senescence has long been established as a stable and irreversible growth arrest, which plays an important role in tumor suppression and tissue repair. It can be induced by various stimuli, including telomere shortening, oncogene activation and oxidative stress. We recently demonstrated that cell-cell fusion is a previously unidentified trigger
Hilah, Gal, Valery, Krizhanovsky
openaire   +2 more sources

VAMP721 conformations unmask an extended motif for K+ channel binding and gating control [PDF]

open access: yes, 2016
Soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) proteins play a major role in membrane fusion and contribute to cell expansion, signaling, and polar growth in plants.
Blatt, Mike R.   +4 more
core   +2 more sources

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

open access: yesFEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka   +11 more
wiley   +1 more source

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