Abstract:
The present invention relates to kits and methods for efficiently generating 5' capped RNA having a modified cap nucleotide and for use of such modified-nucleotide-capped RNA molecules. The invention is used to obtain novel compositions of such modified- nucleotide-capped RNA molecules. In particular, the present invention provides kits and methods for capping RNA using a modified cap nucleotide and a capping enzyme system, such as poxvirus capping enzyme. The present invention finds use for in vitro production o 5'-capped RNA having a modified cap nucleotide and for in vitro or in vivo production o polypeptides by in vitro or in vivo translation of such modified-nucleotide-capped RNA for a variety of research, therapeutic, and commercial applications. The invention also provides methods and kits for capturing or isolating uncapped RNA comprising primary RNA transcripts or RNA having a 5'-diphosphate, such as RNA synthesized in vitro or obtained from a biological source, including prokaryotic mRNA that is in a mixture with other prokaryotic and/or eukaryotic nucleic acids. The method for capturing modified-nucleotide- capped RNA also provides methods and kits for obtaining only type-specific or condition- specific modified-nucleotide-capped RNA by cap-dependent subtraction of that portion of the captured modified-nucleotide-capped RNA in cells of one type or condition that is the same as RNA in cells of another type or condition. The invention further provides methods and kits for using a capping enzyme system and modified cap nucleotides for labelin uncapped RNA comprising primary RNA transcripts or RNA having a 5 '-diphosphate with detectable dye or enzyme moieties.
Abstract:
The present invention relates to compositions and methods employing 5'- phosphate-dependent nucleic acid exonucleases. In particular, the present invention provides kits and methods employing 5 '-phosphate-dependent nucleic acid exonucleases for selective enrichment, isolation and amplification of a particular set of desired nucleic acid molecules from samples that also contain undesired nucleic acid molecules for a variety of uses. In preferred embodiments, the desired nucleic acid molecules comprise prokaryotic and/or eukaryotic mRNA.
Abstract:
The present invention comprises novel methods, compositions and kits comprising monopartite or bipartite target probes and an RNA polymerase to detect and quantify analytes comprising one or multiple target nucleic acid sequences, including target sequences that differ by as little as one nucleotide, or to detect and quantify non-nucleic acid analytes by detecting a target sequence tag that is joined to an analyte-binding substance. The method, called "targetdependent transcription," consists of an annealing process, a DNA ligation process, a transcription process, and a detection process. The invention also comprises novel methods, compositions and kits for amplifying RNA, including strand-displacement reverse transcription and rolling circle reverse transcription.
Abstract:
The present invention relates to compositions, kits and methods for making and using RNA compositions comprising in vitro-synthesized ssRNA inducing a biological or biochemical effect in a mammalian cell or organism into which the RNA composition is repeatedly or continuously introduced. In certain embodiments, the invention provides compositions and methods for changing the state of differentiation or phenotype of a human or other vertebrate cell. For example, the present invention provides mRNA and methods for reprogramming cells that exhibit a first differentiated state or phenotype to cells that exhibit a second differentiated state or phenotype, such as to reprogram human somatic cells to pluripotent stem cells.
Abstract:
The present invention provides compositions and methods for reprogramming somatic cells using purified RNA preparations comprising single-strand mRNA encoding an iPS cell induction factor. The purified RNA preparations are preferably substantially free of RNA contaminant molecules that: i) would activate an immune response in the somatic cells, ii) would decrease expression of the single-stranded mRNA in the somatic cells, and/or iii) active RNA sensors in the somatic cells. In certain embodiments, the purified RNA preparations are substantially free of partial mRNAs, double-stranded RNAs, un-capped RNA molecules, and/or single-stranded run-on mRNAs.
Abstract:
The present invention provides novel compositions, kits and methods employing RNA 5' polyphosphatases, RNA 5' monophosphatases, capping enzymes, decapping enzymes, nucleic acid pyrophosphatases and RNA ligases, as well as other enzymes, for selective 5' ligation tagging of desired classes of RNA molecules that differ with respect to particular chemical moieties on their 5' ends. The 5'tagged RNA molecules can be used for synthesis of tagged first-stand cDNA, double-stranded cDNA, and sense or antisense RNA for a variety of uses.
Abstract:
The present invention relates to kits and methods for efficiently generating 5' capped RNA having a modified cap nucleotide and for use of such modified-nucleotide-capped RNA molecules. The invention is used to obtain novel compositions of such modified- nucleotide-capped RNA molecules. In particular, the present invention provides kits and methods for capping RNA using a modified cap nucleotide and a capping enzyme system, such as poxvirus capping enzyme. The present invention finds use for in vitro production o 5'-capped RNA having a modified cap nucleotide and for in vitro or in vivo production o polypeptides by in vitro or in vivo translation of such modified-nucleotide-capped RNA for a variety of research, therapeutic, and commercial applications. The invention also provides methods and kits for capturing or isolating uncapped RNA comprising primary RNA transcripts or RNA having a 5'-diphosphate, such as RNA synthesized in vitro or obtained from a biological source, including prokaryotic mRNA that is in a mixture with other prokaryotic and/or eukaryotic nucleic acids. The method for capturing modified-nucleotide- capped RNA also provides methods and kits for obtaining only type-specific or condition- specific modified-nucleotide-capped RNA by cap-dependent subtraction of that portion of the captured modified-nucleotide-capped RNA in cells of one type or condition that is the same as RNA in cells of another type or condition. The invention further provides methods and kits for using a capping enzyme system and modified cap nucleotides for labelin uncapped RNA comprising primary RNA transcripts or RNA having a 5 '-diphosphate with detectable dye or enzyme moieties.
Abstract:
The present invention comprises novel methods, compositions and kits that use N4 vRNAP deletion mutants to detect and quantify analytes comprising one or multiple target nucleic acid sequences, including target sequences that differ by as little as one nucleotide or non-nucleic acid analytes, by detecting a target sequence tag that is joined to an analyte-binding substance. The method consists of an annealing process, a DNA ligation process, an optional DNA polymerase extension process, a transcription process, and, optionally, a detection process.
Abstract:
The present invention provides compositions and methods for reprogramming somatic cells using purified RNA preparations comprising single-strand mRNA encoding an iPS cell induction factor. The purified RNA preparations are preferably substantially free of RNA contaminant molecules that: i) would activate an immune response in the somatic cells, ii) would decrease expression of the single-stranded mRNA in the somatic cells, and/or iii) active RNA sensors in the somatic cells. In certain embodiments, the purified RNA preparations are substantially free of partial mRNAs, double-stranded RNAs, un-capped RNA molecules, and/or single-stranded run-on mRNAs.
Abstract:
The invention provides ligation reaction mixtures, methods, and kits for improved template-independent intramolecular ligation (circularization) of linear ssDNA, including denatured gDNA fragments or first-strand cDNA made by reverse transcription of RNA, using, for example, a thermostable RNA ligase. The circular ssDNA molecules obtained using the improved ligation reaction mixtures and methods can be used, for example, as templates: for amplification by inverse PCR, rolling circle replication, transcription, or for massively parallel DNA sequencing. Applications include, for example: gene expression analysis by qPCR or using microarrays; analysis of gDNA copy number variation; and detection or quantification of specific nucleic acid sequences for research, screening, medical diagnostics, theranostics, personalized medical treatment or breeding, for purposes such as human or animal medicine, forensics, or agriculture.