Nucléoside

Science de la nature
Chimie
Chimie organique
Chimie macromoléculaire

Publications associées (12)

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Electronic Relaxation Dynamics of UV-Photoexcited 2-Aminopurine-Thymine Base Pairs in Watson-Crick and Hoogsteen Conformations

Rebecca Ann Ingle, Hugo Jean Baptiste Marroux

The fluorescent analogue 2-aminopurine (2AP) of the canonical nucleobase adenine (6-aminopurine) base-pairs with thymine (T) without disrupting the helical structure of DNA. It therefore finds frequent use in molecular biology for probing DNA and RNA struc ...

AMER CHEMICAL SOC2019

Nucleoside Analogues: Synthesis from Strained Rings

Jérôme Waser, Sophie Lucie Racine, Jérémy Vuilleumier

Nucleoside analogues are widely employed as bioactive compounds against cancer and viral infections. Consequently, it is important to develop efficient synthetic methods to access them with high efficiency and structural diversity. Herein, we present a ful ...

Wiley-V C H Verlag Gmbh2016

First-Principles Photoemission Spectroscopy of DNA and RNA Nucleobases from Koopmans-Compliant Functionals

Nicola Marzari, Giovanni Borghi, Andrea Ferretti

The need to interpret ultraviolet photoemission data strongly motivates the refinement of first-principles techniques that are able to accurately predict spectral properties. In this work, we employ Koopmans-compliant functionals, constructed to enforce pi ...

Amer Chemical Soc2016

Catalytic Metal Ions and Enzymatic Processing of DNA and RNA

Matteo Dal Peraro, Andrea Cavalli, Giulia Palermo

Two-metal-ion-dependent nucleases cleave the phosphodiester bonds of nucleic acids via the two-metal-ion (2M) mechanism. Several high-resolution X-ray structures portraying the two-metal-aided catalytic site, together with mutagenesis and kinetics studies, ...

Amer Chemical Soc2015

Synthesis of (Carbo) nucleoside Analogues by [3+2] Annulation of Aminocyclopropanes

Jérôme Waser, Florian Patrick Marie Daniel De la Barre De Nanteuil, Sophie Lucie Racine, Eloísa Sofía Serrano Robledo

(Carbo) nucleoside derivatives constitute an important class of pharmaceuticals, yet there are only few convergent methods to access new analogues. Here, we report the first synthesis of thymine-, uracil-, and 5-fluorouracil-substituted diester donor-accep ...

Wiley-Blackwell2014

Synthesis of C-linked Disaccharides and Analogues as Biomimetics of the TF Epitope

Maria Kolympadi

Glycoproteins and glycolipids are major components of the outer surface of mammalian cells. Their carbohydrate moieties, which are directed into the outer environment, serve as ligands for receptor proteins, such as lectins, pathogen proteins and antibodie ...

EPFL2011

Chemical approach for the study of the 'kissing complex' of Moloney murine leukaemia Virus

Sébastien Porcher

The replication of Moloney murine leukaemia virus relies on the formation of a stable homodimeric 'kissing complex' of a GACG tetraloop interacting through only two C center dot G base pairs flanked of 5'-adjacent Unpaired adenosines A9. Previous NMR inves ...

Wiley-VHCA AG2008

RNA-sequence or nucleoside/nucleotide analogues and method for producing the analogues

Sébastien Porcher

Nucleic acid sequence analogues, in particular tRNA analogues comprising in the place of a 3'-terminal adenosine a 3'-terminal 2'-deoxy-2'-thioadenosine are able to react site-specifically with weakly activated amino acid derivatives (e.g. phenylthioesters ...

2006

Modified short interfering RNA

Luc Reymond, Evelyne Muller

The present invention refers to a double-stranded siRNA molecule comprising a sense Strand and an antisense Strand which is essentially complementary to the sense Strand, each of the sense and the antisense Strands comprising at least 17 nucleotides (nt), ...

2006

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

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Electronic Relaxation Dynamics of UV-Photoexcited 2-Aminopurine-Thymine Base Pairs in Watson-Crick and Hoogsteen Conformations

Rebecca Ann Ingle, Hugo Jean Baptiste Marroux

AMER CHEMICAL SOC2019