摘要:
The present invention relates to constructs, vectors, relative host cells and pharmaceutical compositions which allow an effective gene therapy, in particular of genes larger than 5 Kb.
摘要:
Two or more conditional, dominant, lethal gene expression systems provide high levels of penetrance in insects. Lethality is induced at an earlier stage of development and the risk of biochemical resistance is reduced, as compared to a single insect conditional, dominant, lethal gene expression system. The invention is useful for the control of insect populations.
摘要:
The invention provides methods and compositions for the expression of small RNA molecules within a cell using a lentiviral vector. The methods can be used to express doubles stranded RNA complexes. Small interfering RNA (siRNA) can be expressed using the methods of the invention within a cell, which are capable of down regulating the expression of a target gene through RNA interference. A variety of cells can be treated according to the methods of the invention including embryos, embryogenic stem cells, allowing for the generation of transgenic animals or animals constituted partly by the transduced cells that have a specific gene or a group of genes down regulated.
摘要:
The present invention is related to a nucleic acid construct comprising - an expression unit for the expression of E1B, wherein the expression unit comprises a promoter, a nucleotide sequence coding for E1B, and a 3'UTR, wherein the promoter is operatively linked to the nucleotide sequence coding for E1B, and wherein the 3'UTR comprises 30 or less than 30 Exonic Enhancer Elements (ESEs), preferably 20 or less than 20 Exonic Enhancer Elements (ESEs) and aminocytic cells containing said nucleic acid construct.
摘要:
This invention provides nucleic acids and expression vectors, and host cells transformed with the same, for providing high expression of a desired polypeptide. Also provided are methods of using the expression vectors, nucleic acids, and host cells which have been modified by these compositions, for increasing expression of a gene encoding a desired polypeptide.
摘要:
Die vorliegende Erfindung betrifft Reportersysteme für den RNA-Export, Verfahren zur Suche nach Molekülen, die den RNA-Export beeinflussen und eine auf diesen Verfahren beruhende Methode zum Nachweis einer Virusinfektion.
摘要:
Adenoviral vectors are provided that contain a transgene inserted in the viral genome at a novel site such that one or more of native processing, regulatory signals or heterologous transcription signals such as branch point sites, splice acceptor sites, internal ribosome entry sites, self-processing cleavage sites and/or polyA signals contribute to transgene expression.
摘要:
This invention provides vectors and methods for the stable introduction of exogenous nucleic acid sequences into the genome of a bird and for expressing said exogenous sequences to alter the phenotype of the bird or to produce desired proteins. In particular, transgenic chickens are produced which express exogenous sequences in their oviducts. Eggs which contain exogenous proteins are also produced.
摘要:
Isolated nucleic acid molecules are disclosed, comprising an alphavirus nonstructural protein gene which, when operably incorporated into a recombinant alphavirus particle, eukaryotic layered vector initiation system, or RNA vector replicon, has a reduced level of vector-specific RNA synthesis, as compared to wild-type, and the same or greater level of proteins encoded by RNA transcribed from the viral junction region promoter, as compared to a wild-type recombinant alphavirus particle. Also disclosed are RNA vector replicons, alphavirus vector constructs, and eukaryotic layered vector initiation systems which contain the above-identified nucleic acid molecules.