Abstract: The present invention is directed to novel methods, kits and uses to be employed for the generation of tagged DNA fragments of a target DNA and nucleic acid molecules associated therewith

Abstract: 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), the siRNA further comprising at least one overhang at the 5? and/or 3? end, wherein the overhang residue or overhang residues are chemically modified and selected independently from each other from the group consisting of: (a) 2?-deoxy modified nucleotides; (b) 2?-methoxy modified nucleotides; (c) two nucleosides linked by a 3? to 5? or 2? to 5? formacetal linkage; (d) nucleotides modified at the 2?-position by a —O—CH2—O—(CH2)2—OH group; and (e) nucleotides comprising in the 3?-position a —CH2—O—(CH2)7—CH3 group.

Abstract: The present invention relates to a process for cell purification, for cell recovery from cultures and for the transfection of the cells under especially gentle conditions, where this process can additionally be coupled with subsequent isolation and purification of polynucleotides from the optionally transfected cells, and a kit and a device for the implementation of this process.

Abstract: The present invention generally relates to gene silencing using sense DNA (sDNA)-antisense RNA (aRNA) hybrids wherein the sense DNA strand is coupled to a peptide which facilitates the uptake of the hybrid into cells.

Abstract: Double-stranded short interfering ribonucleic acid (siRNA) are modified to reduce or eliminate their immunostimulatory effect without significantly affecting their gene silencing effect. Modified siRNA include one or more 2? sugar modifications and, optionally, internucleotide linkages on the sense strand. Compositions containing the modified siRNA and methods of making and using the modified siRNA are disclosed. New and previously characterized siRNA can be synthesized to incorporate modifications according to the invention.

Abstract: 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), the siRNA further comprising at least one overhang at the 5? and/or 3? end, wherein the overhang residue or overhang residues are chemically modified and selected independently from each other from the group consisting of: (a) 2?-deoxy modified nucleotides; (b) 2?-methoxy modified nucleotides; (c) two nucleosides linked by a 3? to 5? or 2? to 5? formacetal linkage; (d) nucleotides modified at the 2?-position by a -0-CH2—O—(CH2)2—OH group; and (e) nucleotides comprising in the 3?-position a —CH2—O—(CH2)7—CH3 group.