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Concept

Ribozyme

Publications associées (13)

Algorithms and flowchart for the design of synthetic biochemical networks

Homa Mohammadi Peyhani

New drugs are needed to assure effective therapies for previously untreated diseases, emerging diseases, and personalized medicine, but the process of drug development is complex, costly, and time-consuming. This is especially problematic considering that ...

EPFL2020

Tissue- and sex-specific small RNAomes reveal sex differences in response to the environment

Pierre Gönczy, Laurent Keller, Alexandra Bezler, Frédéric Schütz

RNA interference (RNAi) related pathways are essential for germline development and fertility in metazoa and can contribute to inter- and trans-generational inheritance. In the nematode Caenorhabditis elegans, environmental double-stranded RNA provided by ...

2019

Structure and dynamics of mesophilic variants from the homing endonuclease I-DmoI

I-DmoI, from the hyperthermophilic archaeon Desulfurococcus mobilis, belongs to the LAGLIDADG homing endonuclease protein family. Its members are highly specific enzymes capable of recognizing long DNA target sequences, thus providing potential tools for g ...

Springer2017

Who Activates the Nucleophile in Ribozyme Catalysis? An Answer from the Splicing Mechanism of Group II Introns

Ursula Röthlisberger, Giulia Palermo

Group II introns are Mg2+-dependent ribozymes that are considered to be the evolutionary ancestors of the eukaryotic spliceosome, thus representing an ideal model system to understand the mechanism of conversion of premature messenger RNA (mRNA) into matur ...

2016

Evaluation of methods for modeling transcription factor sequence specificity

Genomic analyses often involve scanning for potential transcription factor (TF) binding sites using models of the sequence specificity of DNA binding proteins. Many approaches have been developed to model and learn a protein's DNA-binding specificity, but ...

Nature Publishing Group2013

Overexpression of the tcp Gene Cluster Using the T7 RNA Polymerase/Promoter System and Natural Transformation-Mediated Genetic Engineering of Vibrio cholerae

Melanie Blokesch

The human pathogen and aquatic bacterium Vibrio cholerae belongs to the group of naturally competent bacteria. This developmental program allows the bacterium to take up free DNA from its surrounding followed by a homologous recombination event, which allo ...

Public Library of Science2013

Nanopore sensing of single molecules application to RNAP-DNA complexes, fabrication of graphene-nanopore devices and translocation algorithm analysis

Camille Alice Raillon

Nanopore sensing is a single-molecule technique that allows to probe the nano-bio-world with accuracy. It is a non-invasive technique, which means that the molecule of interest does not need to be labeled to be detected by the nanopore. Most of the studies ...

EPFL2012

Role of Environment for Catalysis of the DNA Repair Enzyme MutY

Ursula Röthlisberger, Jeremy Samuel Arey, Elizabeth Claire Brunk

Control of the N-glycosylase reaction by the DNA repair enzyme, MutY, entails the organization of solvent molecules. Classical molecular dynamics and QM/MM simulations were used to investigate the solvent and environment effects contributing to catalysis. ...

2012

NMR-spectroscopic characterization of phosphodiester bond cleavage catalyzed by the minimal hammerhead ribozyme

Philipp Wenter

In order to relate the conformational dynamics of the hammerhead ribozyme to its biological function the cleavage reaction catalyzed by the hammerhead ribozyme was monitored by time-resolved nuclear magnetic resonance (NMR) spectroscopy. For this purpose, ...

2008

Preparation of aminoacylated tRNAs and analogues

The ribosome-mediated, site-specific incorporation of unnatural amino acids into proteins is a powerful tool for creating protein analogues with specific steric, chemical, electronic or spectroscopic properties, in vitro and in vivo. The required aminoacyl ...

EPFL2006

Synthesis of modified nucleosides for the incorporation into tRNAs

Sébastien Porcher

More than 100 modified nucleosides have been found in naturally occurring RNA sequences. These modifications are involved in the correct folding, in the maintenance of the reading frame during translation and in the proper interaction with enzymes and prot ...

EPFL2006

New methods for the investigation of RNA refolding by NMR spectroscopy

Philipp Wenter

A detailed characterization of the time scales and mechanisms by which RNA molecules change their folding structure upon binding of metabolites or during catalysis is important for the understanding of the different biological functions of RNA. The folding ...

EPFL2006

Preparation of modified RNA sequences for biological research

Luc Reymond, Philipp Wenter, Sébastien Porcher, Damian Ackermann, Frédéric David Meylan

Our group is working on the development of reliable access to biol. relevant, long, and modified RNA sequences. Here, we briefly present the chem. synthesis of such sequences with 2'-O-triisopropylsilyloxymethyl (= 2'-O-tom) protected ribonucleoside phosph ...

2005