摘要:
The present invention relates generally to synthetic genes for modifying endogenous gene expression in a cell, tissue or organ of a transgenic organism, in particular a transgenic animal or plant. More particularly, the present invention provides novel synthetic genes and genetic constructs which are capable of repressing delaying or otherwise reducing the expression of an endogenous gene or a target gene in an organism when introduced thereto.
摘要:
The present invention relates generally to a method of modifying gene expression and to synthetic genes for modifying endo gene expression in a cell, tissue or organ of a transgenic organism, in particular a transgenic animal or plant. More particularly, the invention utilizes recombinant DNA technology to post-transcriptionally modify or modulate the expression of a target gene in tissue, organ or whole organism, thereby producing novel phenotypes. Novel synthetic genes and genetic constructs which are cap repressing delaying or otherwise reducing the expression of an endogenous gene or a target gene in an organism when introduced are also provided.
摘要:
The present invention relates to nucleic acid molecules comprising a double-stranded region, and nucleic acid constructs encoding therfor, that are useful for the treatment and/or prevention of influenza. In particular, the present invention relates to nucleic acid constructs encoding a double stranded RNA molecule(s) that can be used to produce transgenic poultry, for example chickens, such that they are at least less susceptible to an avian influenza infection. Also provided are nucleic acid molecules comprising a double-stranded region that can be used as a therapeutic to treat and/or prevent, for example, avian influenza in poultry.
摘要:
The present invention relates to methods and compositions for the production of viral vectors. In particular, the present invention provides methods and compositions for faster, higher titer and higher purity production of viral vectors (e.g. adenoviral vectors). In some embodiments, the present invention provides gutted and helper viruses with identical or similar termini. In other embodiments, the present invention provides terminal protein linked adenoviral DNA. In certain embodiments, the present invention provides template extended adenoviral DNA.
摘要:
Disclosed are replicatable viral DNA vectors encoding a site-specific DNA-altering enzyme and a DNA target recognized by the enzyme, the enzyme selectively converting, in a cell expressing the enzyme, the DNA vector to a rearranged form. The invention further relates to methods for assembling recombinant adenoviral DNAs. These methods include the steps of: (a) providing a first linearized DNA vector including a restriction site and a cos site and a second linearized DNA vector including the restriction site, an adenoviral nucleic acid molecule, and a cos site; and (b) ligating the first and second linearized DNA vectors, the ligation assembling a recombinant adenoviral DNA.
摘要:
Disclosed are replicatable viral DNA vectors encoding a site-specific DNA-altering enzyme and a DNA target recognized by the enzyme, the enzyme selectively converting, in a cell expressing the enzyme, the DNA vector to a rearranged form. The invention further relates to methods for assembling recombinant adenoviral DNAs. These methods include the steps of: (a) providing a first linearized DNA vector including a restriction site and a cos site and a second linearized DNA vector including the restriction site, an adenoviral nucleic acid molecule, and a cos site; and (b) ligating the first and second linearized DNA vectors, the ligation assembling a recombinant adenoviral DNA.
摘要:
A simple and highly efficient method for cloning cDNAs including CD27 (SEQ ID NO:28) from mammalian expression libraries based on transient expression in mammalian host cells has been discovered. Novel expression vectors allowing highly efficient construction of mammalian cDNA libraries are disclosed. The cloning method of the invention which has been used to clone genes for cell surface antigens of human lymphocytes, has general application in gene cloning. Cell surface antigens cloned according to the present invention have been purified, and the nucleotide and amino acid sequences determined. These antigens have diagnostic and therapeutic utility in immune-mediated infections in mammals, including humans.
摘要翻译:已经发现了一种基于哺乳动物宿主细胞中的瞬时表达来克隆来自哺乳动物表达文库的cDNA(包括CD27(SEQ ID NO:28))的简单且高效的方法。 公开了能够高效构建哺乳动物cDNA文库的新型表达载体。 用于克隆人淋巴细胞表面抗原基因的本发明的克隆方法在基因克隆中具有一般应用。 已经纯化了根据本发明克隆的细胞表面抗原,并确定了核苷酸和氨基酸序列。 这些抗原在哺乳动物(包括人)的免疫介导感染中具有诊断和治疗效用。
摘要:
The present invention relates generally to a method of modifying gene expression and to synthetic genes for modifying endo gene expression in a cell, tissue or organ of a transgenic organism, in particular a transgenic animal or plant. More particularly, the invention utilises recombinant DNA technology to post-transcriptionally modify or modulate the expression of a target gene in tissue, organ or whole organism, thereby producing novel phenotypes. Novel synthetic genes and genetic constructs which are cap repressing delaying or otherwise reducing the expression of an endogenous gene or a target gene in an organism when introduced are also provided.
摘要:
The subject invention provides a unidirectional site-specific integration system for integrating a nucleic acid into the genome of a target cell. The provided systems include a (1) a mutant, unidirectional site specific integrase, which can be provided by an integrase vector encoding the mutant integrase and (2) a targeting vector that includes: (a) a nucleic acid to be integrated; and (b) a vector attachment site, where the targeting vector attachment site serves as a substrate for the mutant, unidirectional site-specific integrase. In using the subject systems for site-specific integration, the targeting vector and integrase are introduced into the target cell and the cell is maintained under conditions sufficient to provide for site-specific integration of the nucleic acid into the target cell genome via a recombination event mediated by the site-specific integrase. Also provided are kits that include the subject systems. The subjects systems, methods and kits find use in a variety of different applications, several representative ones of which are described in detail as well.
摘要:
A helper dependent adenoviral vector system is provided. The subject helper dependent adenoviral vector system is made up of: (1) a “gutless” adenoviral vector that include cis-acting human stuffer DNA that provides for in vivo long term, high level expression of a coding sequence present on the vector; (2) an adenoviral helper vector that is characterized by having an adenoviral genome region flanked by recombinase recognition sites, where the helper vectors further include a non-mammalian endonuclease recognition site positioned outside of the adenoviral genome region; and (3) a mammalian cell that expresses the corresponding recombinase and endonuclease, as well as the adenoviral preterminal and polymerase proteins. Also provided are methods of using the subject systems to produce virions having the subject helper dependent adenoviral vectors encapsulated in an adenoviral capsid. In addition, kits for use in practicing the subject methods are provided.