Publications associées à ARN polymérase ARN-dépendante

Stimulus-responsive assembly of nonviral nucleocapsids

Controlled assembly of a protein shell around a viral genome is a key step in the life cycle of many viruses. Here we report a strategy for regulating the co-assembly of nonviral proteins and nucleic acids into highly ordered nucleocapsids in vitro. By fus ...

Nature Portfolio2024

Simultaneous membrane and RNA binding by Tick-Borne Encephalitis Virus capsid protein

Sarah Victoria Barrass

Tick-borne encephalitis virus is an enveloped, pathogenic, RNA virus in the family Flaviviridae, genus Flavivirus. Viral particles are formed when the nucleocapsid, consisting of an RNA genome and multiple copies of the capsid protein, buds through the end ...

PUBLIC LIBRARY SCIENCE2023

Construction of sequencing libraries from a ribonucleic acid (rna) using tailing and ligation of cdna (tlc)

Didier Trono, Christina Ernst

The present invention provides a method for preparing a sequencing library from a ribonucleic acid (RNA) sample. ...

2023

Surfactant Treatment for Efficient Gene Detection of Enteric Viruses and Indicators in Surface Water Concentrated by Ultrafiltration

Shotaro Torii

The hollow fiber ultrafiltration (HFUF)-based microbial concentration method is widely applied for monitoring pathogenic viruses and microbial indicators in environmental water samples. However, the HFUF-based method can co-concentrate substances that inte ...

SPRINGER2023

RNA-based nanomedicines and their clinical applications

Yi Wang

RNA-based nanomedicines encompass a range of therapeutic approaches that utilize RNA molecules or molecules that target RNAs for the treatment or prevention of diseases. These include antisense oligonucleotides (ASOs), small interfering RNAs (siRNAs), endo ...

Tsinghua Univ Press2023

Comparative Evaluation of Lipofectamine and Dendrimer for Transfection of Short RNA Into Human T47D and MCF-10A Cell Lines

Erfan Shirzadi

Purpose: Non-viral transfection approaches are extensively used in cancer therapy. The future of cancer therapy lies on targeted and efficient drug/gene delivery. The aim of this study was to determine the transfection yields of two commercially available ...

2023

Robust gamma-aminobutyric acid and energy metabolism measurements by proton and phosphorus magnetic resonance spectroscopy and fingerprinting

Songi Lim

Magnetic resonance spectroscopy (MRS) is the only technique that can detect endogenous metabolites directly and non-invasively in vivo. It allows to identify different metabolites and analyze the dynamic neurochemical processes in the brain, skeletal muscl ...

EPFL2023

Identification of broad anti-coronavirus chemical agents for repurposing against SARS-CoV-2 and variants of concern

Gerardo Turcatti, Fabien Kuttler, Michael Bauer, Liliane Yang

Endemic human coronaviruses (hCoVs) 229E and OC43 cause respiratory disease with recurrent infections, while severe acute respiratory syndrome (SARS)-CoV-2 spreads across the world with impact on health and societies. Here, we report an image-based multicy ...

2022

A DNA biosensors-based microfluidic platform for attomolar real-time detection of unamplified SARS-CoV-2 virus

Sandrine Gerber, Mounir Driss Mensi, Céline Marie Anne Journot, Perrine Agnes Edith Robin, Lucas Mayoraz, Igor Stefanini, Roberto Robortella

The emergence of the coronavirus 2019 (COVID-19) arose the need for rapid, accurate and massive virus detection methods to control the spread of infectious diseases. In this work, a device, deployable in non-medical environments, has been developed for the ...

2023

Comprehensive analysis of the circadian nuclear and cytoplasmic transcriptome in mouse liver

Felix Naef, Cédric Gobet, Benjamin Dieter Weger, Clémence Yumie Syloun Hurni

In eukaryotes, RNA is synthesised in the nucleus, spliced, and exported to the cytoplasm where it is translated and finally degraded. Any of these steps could be subject to temporal regulation during the circadian cycle, resulting in daily fluctuations of ...

PUBLIC LIBRARY SCIENCE2022

Phylogenetic estimation of the viral fitness landscape of HIV-1 set-point viral load

Jacques Fellay, Luca Ferretti

Set-point viral load (SPVL), a common measure of human immunodeficiency virus (HIV)-1 virulence, is partially determined by viral genotype. Epidemiological evidence suggests that this viral property has been under stabilising selection, with a typical opti ...

OXFORD UNIV PRESS2022

A Role for Human DNA Polymerase λ in Alternative Lengthening of Telomeres

Joachim Lingner, Liuh-Yow Chen

Telomerase negative cancer cell types use the Alternative Lengthening of Telomeres (ALT) pathway to elongate telomeres ends. Here, we show that silencing human DNA polymerase (Pol λ) in ALT cells represses ALT activity and induces telomeric stress. In addi ...

2021

Antiviral Screen against Canine Distemper Virus-Induced Membrane Fusion Activity

Gerardo Turcatti, Marc Chambon, Jonathan Patrice Vesin

Canine distemper virus (CDV), a close relative of the human pathogen measles virus (MeV), is an enveloped, negative sense RNA virus that belongs to the genus Morbillivirus and causes severe diseases in dogs and other carnivores. Although the vaccination is ...

2021

Organisation and dynamics of mitochondria and their RNA

Timo Henry René Rey

The organisation of molecules into dynamic cells, and collaboration of many of those cells over a billion years led to the evolution of human life. During the last century, biologists then began to unravel the marvels of cellular organisation with ever inc ...

EPFL2021

The ETFL formulation allows multi-omics integration in thermodynamics-compliant metabolism and expression models

Vassily Hatzimanikatis, Pierre Guy Rémy Salvy

Systems biology has long been interested in models capturing both metabolism and expression in a cell. We propose here an implementation of the metabolism and expression model formalism (ME-models), which we call ETFL, for Expression and Thermodynamics Flu ...

Nature Research2020

Mitochondrial RNA granules are fluid condensates positioned by membrane dynamics

Suliana Manley, Mary-Claude Croisier-Coeytaux, Timo Henry René Rey

Phase separation concentrates mitochondrial RNA granules. Here Rey et al., show that mitochondrial RNA granules (MRGs) behaviour is consistent with liquid-liquid phase separation (LLPS) and their fusion coincides with mitochondrial remodelling. Mitochondri ...

2020

Computational study of transcription factor binding sites

Romain Fernand Pietro Groux

Any living organism contains a whole set of instructions encoded as genes on the DNA. This set of instructions contains all the necessary information that the organism will ever need, from its development to a mature individual to environment specific resp ...

EPFL2020

Robust landscapes of ribosome dwell times and aminoacyl-tRNAs in response to nutrient stress in liver

Felix Naef, Cédric Gobet, Frédéric Bruno Martin Gachon, Benjamin Dieter Weger, Nagammal Neelagandan

Translation depends on messenger RNA (mRNA)-specific initiation, elongation, and termination rates. While translation elongation is well studied in bacteria and yeast, less is known in higher eukaryotes. Here we combined ribosome and transfer RNA (tRNA) pr ...

National Academy of Sciences2020

RAD51-dependent recruitment of TERRA lncRNA to telomeres through R-loops

Joachim Lingner, Thomas Frédéric Lunardi, Marianna Feretzaki, Rita Valador Fernandes

Telomeres-repeated, noncoding nucleotide motifs and associated proteins that are found at the ends of eukaryotic chromosomes-mediate genome stability and determine cellular lifespan1. Telomeric-repeat-containing RNA (TERRA) is a class of long noncoding RNA ...

2020

The Human RNA Helicase DDX21 Presents a Dimerization Interface Necessary for Helicase Activity

Didier Trono, Matteo Dal Peraro, Suliana Manley, Maria Josefina Marcaida Lopez, Jenny Sülzle, Annamaria Kauzlaric, Alice Duperrex

Members of the DEAD-box helicase family are involved in all fundamental processes of RNA metabolism, and as such, their malfunction is associated with various diseases. Currently, whether and how oligomerization impacts their biochemical and biological fun ...

2020