Cécile Bourget

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Complementary oligodeoxynucleotides (ODNs) that contain 2-aminoadenine and 2-thiothymine interact weakly with each other but form stable hybrids with unmodified complements. These selectively binding complementary (SBC) agents can invade duplex DNA and hybridize to each strand (Kutyavin, I. V., Rhinehart, R. L., Lukhtanov, E. A., Gorn, V. V., Meyer, R. B.,(More)
DNA and RNA labeling and detection are key steps in nucleic acid-based technologies, used in medical research and molecular diagnostics. We report here the synthesis, reactivity, and potential of a new type of labeling molecule, m-(N-Biotinoylamino)phenylmethyldiazomethane (m-BioPMDAM), that reacts selectively and efficiently with phosphates in nucleotide(More)
Chemically-modified oligonucleotides are now routinely used to prevent gene expression in cell-free media and in cultured cells. The binding of an antisense sequence to a complementary RNA target may lead to the selective inhibition of the encoded information. This may occur at different levels: splicing; transport of the mature RNA from the nucleus to the(More)
Molecules 2-5 that include in their structure a biotin moiety as detectable unit and differently substituted phenyl diazo functions as reactive group were prepared as reagents for labeling the phosphate group in mono and polynucleotides. These molecules were shown to react selectively and quantitatively with the model nucleotide 3'-UMP. They were used(More)
A new and efficient strategy for labeling of nucleic acids prior to their hybridization on high density DNA chip has been developed. Our approach which combines the fragmentation and the labeling is based on the reactivity of the terminal phosphates of cleaved DNA and RNA fragments with a reporter molecule bearing aryldiazomethane group.
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