Results 71 to 80 of about 79,372 (334)

Extrachromosomal Nucleolus-Like Compartmentalization by a Plasmid-Borne Ribosomal RNA Operon and Its Role in Nucleoid Compaction

open access: yesFrontiers in Microbiology, 2018
In the fast-growing Escherichia coli cells, RNA polymerase (RNAP) molecules are concentrated and form foci at clusters of ribosomal RNA (rRNA) operons resembling eukaryotic nucleolus. The bacterial nucleolus-like organization, spatially compartmentalized
Carmen Mata Martin   +3 more
doaj   +1 more source

A Machine‐Learning Approach Identifies Rejuvenating Interventions in the Human Brain

open access: yesAdvanced Science, EarlyView.
Rising life expectancy increases the incidence of age‐related neurodegeneration. Reverting brain aging through effective rejuvenation strategies constitutes a promising strategy to counteract these disorders and restore brain function. This study uses a brain‐specific transcriptional aging clock to screen over 43 000 perturbation profiles, identifying ...
Guillem Santamaria   +5 more
wiley   +1 more source

A Molecular Recruitment Colocalization Platform for Visualizing Multi‐Protein Interactions and Engineering Biomolecular Condensates in Living Cells

open access: yesAdvanced Science, EarlyView.
MRC is a live‐cell method enabling visualization of protein–protein interactions and biomolecular condensates. It supports multi‐protein colocalization, binding analysis, and programmable condensate manipulation, providing a versatile platform for studying dynamic cellular organization.
Lei Peng   +8 more
wiley   +1 more source

Nucleolus and Nucleolar Stress: From Cell Fate Decision to Disease Development

open access: yesCells, 2022
Besides the canonical function in ribosome biogenesis, there have been significant recent advances towards the fascinating roles of the nucleolus in stress response, cell destiny decision and disease progression.
Lu Hua   +3 more
doaj   +1 more source

Telomeres cluster de novo before the initiation of synapsis: a three-dimensional spatial analysis of telomere positions before and during meiotic prophase. [PDF]

open access: yes, 1997
We have analyzed the progressive changes in the spatial distribution of telomeres during meiosis using three-dimensional, high resolution fluorescence microscopy.
Agard, DA   +4 more
core  

Measuring voting power in convex policy spaces [PDF]

open access: yes, 2013
Classical power index analysis considers the individual's ability to influence the aggregated group decision by changing its own vote, where all decisions and votes are assumed to be binary. In many practical applications we have more options than either
Kurz, Sascha
core   +6 more sources

Internal Phase Separation in Synthetic DNA Condensates

open access: yesAdvanced Science, EarlyView.
The modular, programmable system of DNA nanostructures developed provides programmatic control over multiphase condensate behavior, enabling mapping onto a predictive Flory‐Huggins model. This combined experimental and theoretical framework will help address open questions in condensate biophysics and facilitate the rational design of functional ...
Diana A. Tanase   +5 more
wiley   +1 more source

SNORA58 Facilitates Radioresistance via Suppressing JNK1‐Mediated Ferroptosis in Esophageal Squamous Cell Carcinoma

open access: yesAdvanced Science, EarlyView.
In ESCC patients, SNORA58 exhibits heterogeneous expression patterns. Its aberrant overexpression stabilizes CTCF by inhibiting ubiquitin‐mediated degradation, leading to the attenuation of JNK1‐mediated ferroptosis induced by radiotherapy through disruption of intracellular iron homeostasis, and ultimately contributes to radioresistance ...
Yinli Zheng   +14 more
wiley   +1 more source

Quantitative nucleolar proteomics reveals nuclear re-organization during stress- induced senescence in mouse fibroblast

open access: yesBMC Cell Biology, 2011
Background Nucleolus is the most prominent mammalian organelle within the nucleus which is also the site for ribosomal biogenesis. There have been many reports indicating the involvement of nucleolus in the process of aging.
Zhou Zhongjun   +3 more
doaj   +1 more source

Nucleolar Localization of HIV-1 Rev Is Required, Yet Insufficient for Production of Infectious Viral Particles. [PDF]

open access: yes, 2018
Combination antiretroviral therapy fails in complete suppression of HIV-1 due to drug resistance and persistent latency. Novel therapeutic intervention requires knowledge of intracellular pathways responsible for viral replication, specifically those ...
Arizala, Jerlisa Ann C   +5 more
core   +1 more source

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