Abstract: The present invention relates to compositions and methods that allow the manipulation of the catalytic activity of multi-component nucleic acid complexes. Further, the invention provides methods which use these compositions and methods to create molecular sensors, molecular switches, and/or modulators or propagators of autocatalytic self-replicating cascades and other iterative processes. More particularly, the invention relates to compositions allowing self-assembly of active and inactive multicomponent nucleic acid complexes, methods of making such compositions, and methods for use.

Abstract: The present invention relates to Multicomponent Nucleic Acid Enzymes (MNAzymes) and methods for their use. MNAzymes comprise two or more oligonucleotide components which self-assemble in the presence of one or more MNAzyme assembly facilitator molecules to form a catalytically active structure. Compositions for making MNAzymes, and collections of MNAzymes are provided. Also provided are methods for using MNAzymes for the detection, identification and/or quantification of one or more targets. The methods can be practiced in solution-based assays or in assays where one or more reaction components are attached to a support structure. The methods allow for multiplexing the MNAzyme detection to detect multiple targets in a single reaction. Also provided are kits for making the compositions, and for practicing the methods provided herein.

Abstract: The present invention relates to Multicomponent Nucleic Acid Enzymes (MNAzymes) and methods for their use. MNAzymes comprise two or more oligonucleotide components which self-assemble in the presence of one or more MNAzyme assembly facilitator molecules to form a catalytically active structure which may have cleavage, ligase or other enzymatic activity. Compositions for making MNAzymes and collections of MNAzymes are provided, together with uses thereof. Also provided are methods for using MNAzymes for the detection, identification and/or quantification of one or more targets. The methods can be practiced in solution-based assays or in assays where one or more reaction components are attached to a support structure. The methods allow for multiplexing the MNAzyme detection to detect multiple targets in a single reaction. Also provided are kits for making the compositions, and for practicing the methods provided herein.

Abstract: Interfering RNA molecules are now designed and produced with specificity for multiple binding sequences present in distinct genetic contexts in one or more pre-selected target RNA molecules and are used to modulate expression of the target sequences. The multitargeting interfering RNA molecules have two strands that target multiple target sites on one or more pre-selected RNA molecules. Such a multitargeting interfering RNA approach provides a powerful tool for gene regulation.

Abstract: The present invention concerns methods and reagents useful in decreasing the level of or severity of respiratory infection or disease due to paramyxoviruses, such as RSV or HPIV, or coronavirus infection. Particularly, the invention relates to modulating gene expression using a multitargeting interfering RNA molecules that target multiple target sites on one or more pre-selected RNA molecules.

Abstract: The present invention relates to guanosine-rich oligonucleotides having the capacity to induce cell death, having characteristics of programmed cell death, in non-quiescent cells of higher eukaryotic organisms. The invention also relates to therapeutic methods involving the administration of these nucleic acid molecules to subjects suffering from, or being predisposed to, disorders involving abnormal cell proliferation and migration. The invention also concerns pharmaceutical compositions comprising the guanosine-rich nucleic acid molecules, in association with suitable carriers.

Abstract: Interfering RNA molecules are now designed and produced with specificity for multiple binding sequences present in distinct genetic contexts in one or more pre-selected target RNA molecules and are used to modulate expression of the target sequences. Such a multitargeting interfering RNA approach provides a powerful tool for gene regulation.

Abstract: Interfering RNA molecules are now designed and produced with specificity for multiple binding sequences present in distinct genetic contexts in one or more pre-selected target RNA molecules and are used to modulate expression of the target sequences. The multitargeting interfering RNA molecules have two strands that target multiple target sites on one or more pre-selected RNA molecules. Such a multitargeting interfering RNA approach provides a powerful tool for gene regulation.

Abstract: The present invention relates to an antiskinning composition containing an organic oxygen scavenger and at least one drying accelerator.

Abstract: The invention relates to use of the nitrate reductase gene as a selection marker in transformations of the antibiotic-producing species Penicillium chrysogenum and Acremonium chrysogenum. In particular it relates to a process for obtaining cells of Penicillium chrysogenum or Acremonium chrysogenum capable of expressing nitrate reductase from cells of the same species which are initially deficient in expression of the nitrate reductase gene (niaD-cells), which comprises introducing into said niaD-cells vector DNA including a marker gene coding for nitrate reductase operatively linked to a control sequence for expression of said gene within the selected host cells, followed by selection of cells thus transformed by their ability to grow on a suitable medium containing nitrate as the only source of nitrogen and to vector DNA for use in such a process.