Results 41 to 50 of about 22,100 (253)

miRNA‐29 regulates epidermal and mesenchymal functions in skin repair

open access: yesFEBS Letters, EarlyView.
miRNA‐29 inhibits cell‐to‐cell and cell‐to‐matrix adhesion by silencing mRNA targets. Adhesion is controlled by complex interactions between many types of molecules coded by mRNAs. This is crucial for keeping together the layers of the skin and for regenerating the skin after wounding.
Lalitha Thiagarajan   +10 more
wiley   +1 more source

Intrinsic Mean Square Displacements in Proteins [PDF]

open access: yes, 2012
The thermal mean square displacement (MSD) of hydrogen in proteins and its associated hydration water is measured by neutron scattering experiments and used an indicator of protein function. The observed MSD as currently determined depends on the energy resolution width of the neutron scattering instrument employed.
arxiv   +1 more source

Eosinophils and COVID-19: Insights into immune complexity and vaccine safety. [PDF]

open access: yesClin Transl Allergy
Background COVID‐19 exhibits a variety of symptoms and may lead to multi‐organ failure and death. This clinical complexity is exacerbated by significant immune dysregulation affecting nearly all cells of the innate and adaptive immune system ...
Sahli W, Vitte J, Desnues B.
europepmc   +2 more sources

Senescent cells limit p53 activity via multiple mechanisms to remain viable

open access: yesNature Communications, 2022
To develop therapeutics that selectively eliminate pathological senescent cells it is important to understand their survival mechanisms. Here, the authors show that senescent cells manage to survive by keeping p53 activity in check through multiple ...
Ines Sturmlechner   +7 more
doaj   +1 more source

A cellular system to study responses to a collision between the transcription complex and a protein‐bound nick in the DNA template

open access: yesFEBS Letters, EarlyView.
We present the cellular transcription‐coupled Flp‐nick system allowing the introduction of a Top1‐mimicking cleavage complex (Flpcc) at a Flp recognition target site within a controllable LacZ gene. LacZ transcription leads to the collision of RNA polymerase II (RNAPII) with Flpcc, and this causes RNAPII stalling, ubiquitination, and degradation.
Petra Herring   +6 more
wiley   +1 more source

Secreted alkaline ribonucleases of micromycetes

open access: yesУчёные записки Казанского университета: Серия Естественные науки, 2020
Many ribonucleases (RNases) have a selective cytotoxic effect on tumor cells. Of particular interest are enzymes that are phylogenetically distant from mammalian RNases, such as amphibian, fungal, and bacterial RNases, all insensitive to the action of ...
V.V. Ulyanova   +5 more
doaj   +1 more source

Decay-Initiating Endoribonucleolytic Cleavage by RNase Y Is Kept under Tight Control via Sequence Preference and Sub-cellular Localisation. [PDF]

open access: yesPLoS Genetics, 2015
Bacteria depend on efficient RNA turnover, both during homeostasis and when rapidly altering gene expression in response to changes. Nevertheless, remarkably few details are known about the rate-limiting steps in targeting and decay of RNA.
Vanessa Khemici   +3 more
doaj   +1 more source

Evolutionary interplay between viruses and R‐loops

open access: yesFEBS Letters, EarlyView.
Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi   +4 more
wiley   +1 more source

Ribonucleases with Antiproliferative Properties: Molecular Biological and Biochemical Characteristics

open access: yesКлиническая онкогематология, 2016
The article dwells on ribonucleases (RNAses) whose cytotoxic activity depends on the enzymatic activity, i.e. the ability to catalyze the cleavage of phosphodiester bonds of RNA.
VS Pokrovskii   +3 more
doaj   +1 more source

The evolutionary history of plant T2/S-type ribonucleases [PDF]

open access: yesPeerJ, 2017
A growing number of T2/S-RNases are being discovered in plant genomes. Members of this protein family have a variety of known functions, but the vast majority are still uncharacterized.
Karolis Ramanauskas, Boris Igić
doaj   +2 more sources

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