Results 51 to 60 of about 892,996 (295)

Altered cofactor recruitment and nucleosome dynamics underlie bisphenol A’s impact on ERα-mediated transcriptional bursting

open access: yesiScience
Summary: Transcription initiation at hormone-responsive gene promoters involves recruitment of numerous proteins that initiate stochastic events known as transcriptional bursts.
Christopher R. Day   +5 more
doaj   +1 more source

Environmental RNA degrades more rapidly than environmental DNA across a broad range of pH conditions

open access: yesMolecular Ecology Resources, 2022
AbstractAlthough the use and development of molecular biomonitoring tools based on environmental nucleic acids (eDNA and eRNA; collectively known as eNAs) have gained broad interest for the quantification of biodiversity in natural ecosystems, studies investigating the impact of site‐specific physicochemical parameters on eNA‐based detection methods ...
Kaushar Kagzi   +3 more
openaire   +2 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

open access: yesFEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva   +5 more
wiley   +1 more source

Poly(A) tail regulation in stem cells and early development

open access: yesCell Regeneration
Eukaryotic mRNAs are polyadenylated at their 3’-ends, and the poly(A) tails play critical roles in post-transcriptional gene regulation by influencing mRNA stability and translation.
Xiaosu Miao, Guang Hu
doaj   +1 more source

In situ structures of the segmented genome and RNA polymerase complex inside a dsRNA virus. [PDF]

open access: yes, 2015
Viruses in the Reoviridae, like the triple-shelled human rotavirus and the single-shelled insect cytoplasmic polyhedrosis virus (CPV), all package a genome of segmented double-stranded RNAs (dsRNAs) inside the viral capsid and carry out endogenous ...
Chang, Winston   +5 more
core  

RNAi efficiency, systemic properties, and novel delivery methods for pest insect control : what we know so far [PDF]

open access: yes, 2016
In recent years, the research on the potential of using RNA interference (RNAi) to suppress crop pests has made an outstanding growth. However, given the variability of RNAi efficiency that is observed in many insects, the development of novel approaches
Christiaens, Olivier   +3 more
core   +2 more sources

Methodological considerations for aqueous environmental RNA collection, preservation, and extraction

open access: yesAnalytical Sciences, 2023
Environmental RNA (eRNA) analysis is expected to infer species' physiological information (health status, developmental stage, and environmental stress response) and their distribution and composition more correctly than environmental DNA (eDNA) analysis.
openaire   +2 more sources

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

open access: yesFEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Guanine quadruplexes mediate mitochondrial RNA polymerase pausing

open access: yesBMC Biology
Background The information content within nucleic acids extends beyond the primary sequence to include secondary structures with functional roles in transcription regulation.
Ryan J. Snyder   +6 more
doaj   +1 more source

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