Publications by Sébastien Porcher

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

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

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

Preparation of modified RNA sequences for biological research

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

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

Spontaneous aminoacylation of a RNA sequence containing a 3'-terminal 2'-thio-adenosine

Sébastien Porcher

We report the synthesis of a modified 8-mer RNA sequence, (C-C-C-C-A-C-C-(2'-thio)A)-RNA 5'-(dihydrogen phosphate) contg. a 3'-terminal 2'-thio-adenosine and its spontaneous and site-specific aminoacylation with the weakly activated amino acid thioester H- ...

Wiley-VHCA AG2005

Synthesis of 2'-O-[(triisopropylsilyl)oxy]methyl(=tom)-protected ribonucleoside phosphoramidites containing various nucleobase analogs

Sébastien Porcher

The first results of a study aiming at an efficient prepn. of a large variety of 2'-O-[(triisopropylsilyl)oxy]methyl(=tom)-protected ribonucleoside phosphoramidite building blocks contg. modified nucleobases are reported. All of the here presented nucleosi ...

Wiley-VHCA AG2005