The long path from initial research on oligonucleotide therapies to approval of antisense products is not unfamiliar. This lag resembles those encountered with monoclonal antibodies, gene therapies, and many biological targets and is consistent with studies of innovation showing that technology maturation is a critical determinant of product success. We previously described an analytical model ...

Advice: ACRE considers that herbicide tolerant (HT) oilseed rape plants produced by Cibus LLC have been developed using a form of mutagenesis. It considers that this technique does not involve the use of recombinant nucleic acid molecules. Consequently, the HT oilseed rape plants could be excluded from the GMO Deliberate Release legislation in accordance with Annex 1B of Directive 2001/18/EC. I...

Two dimensional PEI-cellulose thin layer chromatography can resolve sequentially degraded oligonucleotide fragments of tRNA. This technique entails the sequential degradation of the oligonucleotide with snake venom phosphodiesterase in the presence of bacterial alkaline phosphatase, and periodate oxidation followed by tritiated sodium borohydride reduction of the 3' terminal nucleoside. Subsequ...

Correct human beta-globin mRNA has been restored in erythroid cells from transgenic mice carrying the human gene with beta-globin IVS2-654 splice mutation and from thalassemia patients with the IVS2-654/beta(E) genotype. This was accomplished in a dose- and time-dependent manner by free uptake of morpholino oligonucleotide antisense to the aberrant splice site at position 652 of intron 2 in bet...

Here we describe a novel endonuclease IV (Endo IV) based assay utilizing a substrate that mimics the abasic lesions that normally occur in double-stranded DNA. The three component substrate is characterized by single-stranded DNA target, an oligonucleotide probe, separated from a helper oligonucleotide by a one base gap. The oligonucleotide probe contains a non-fluorescent quencher at the 5' en...

The chemical structure of oligonucleotide analogues dictates the conformation analogue oligomers, their ability to hybridize complementary DNA and RNA, stability degradation pharmacokinetic properties. In a study aimed at investigating new featuring neutral backbone, we explored oligomers containing morpholino-peptide backbone bind oligonucleotides. Circular Dichroism studies revealed our inter...

An oligonucleotide probe was selected from the 16S rRNA gene of Clavibacter michiganensis subsp. sepedonicus for specific in situ hybridization. The rhodamine-labelled oligonucleotide probe was used in conjunction with an indirect immunofluorescence procedure based on a specific monoclonal antibody detected with a fluorescein-labelled conjugate. Simultaneous labelling of bacterial cells with th...

We described a solid-supported desulfurization procedure allowing easy access to the sequence analysis of oligonucleotide phosphorothioates. The described method is based upon selective removal of the 2-cyanoethyl phosphate protecting groups, followed by iodine-promoted desulfurization of the resulting phosphorothioate diesters. Automatic oxidation of oligonucleotide phosphorothioates, anchored...

A computer program, OligoWalk, is reported that predicts the equilibrium affinity of complementary DNA or RNA oligonucleotides to an RNA target. This program considers the predicted stability of the oligonucleotide-target helix and the competition with predicted secondary structure of both the target and the oligonucleotide. Both unimolecular and bimolecular oligonucleotide self structure are c...

OF DOCTORAL DISSERTATION HELSINKI UNIVERSITY OF TECHNOLOGY P.O. BOX 1000, FI-02015 TKK http://www.tkk.fi Author Lic. Tech. Sanna Carlsson Name of the dissertation An electroanalytical toolbox for bioapplications Manuscript submitted 16 April 2009 Manuscript revised Date of the defence 27 November 2009 Monograph Article dissertation (summary + original articles) Faculty Faculty of Chemistry and ...