DNA ENCODING KAPPA-CASEIN, PROCESS FOR OBTAINING THE PROTEIN AND USE THEREOF
    111.
    发明授权
    DNA ENCODING KAPPA-CASEIN, PROCESS FOR OBTAINING THE PROTEIN AND USE THEREOF 失效
    FOR KAPPA酪蛋白的DNA编码方法计算蛋白质和及其用途

    公开(公告)号:EP0625197B1

    公开(公告)日:2002-12-04

    申请号:EP93902110.1

    申请日:1993-01-25

    申请人: SYMBICOM AB

    摘要: The present invention relates to an expression system comprising a DNA sequence encoding a polypeptide which has a biological activity of human λ-casein, the system comprising a 5'-flanking sequence capable of mediating expression of said DNA sequence. In preferred embodiments the 5'-flanking sequence is from a milk protein gene of a mammal such as a casein gene or whey acidic protein (WAP) gene and the DNA sequence contains at least one intron sequence. The invention further relates to DNA sequences, replicable expression vectors and cells harbouring said vectors, recombinant polypeptide e.g. in glycosylated form, and milk, infant formula or nutrient supplement comprising recombinant polypeptide. The invention also relates to a method for producing a transgenic non-human mammal comprising injecting an expression system as defined above and optionally a further DNA encoding β-casein or an analogue, variant or subsequence thereof into a fertilized egg or a cell of an embryo of a mammal so as to incorporate the expression system into the germline of the mammal and developing the resulting injected fertilized egg or embryo into an adult female mammal. In one embodiment, the endogenous polypeptide expressing capability of the mammal is destroyed and/or replaced with the expression system defined above. The invention further relates to a transgenic non-human mammal such as a mouse, rat, rabbit, goat, sheep, pig, lama, camel or bovine species whose germ cells and somatic cells contain a DNA sequence as defined above as a result of chromosomal incorporation into the non-human mammalian genome, or into the genome of an ancestor of said non-human mammal.

    EXPRESSION PLASMIDS FOR MULTIEPITOPE NUCLEIC ACID-BASED VACCINES
    120.
    发明公开
    EXPRESSION PLASMIDS FOR MULTIEPITOPE NUCLEIC ACID-BASED VACCINES 审中-公开
    表达质粒多表位的DNA疫苗

    公开(公告)号:EP1030927A1

    公开(公告)日:2000-08-30

    申请号:EP98957671.5

    申请日:1998-11-09

    申请人: Valentis Inc.

    IPC分类号: C12N15/86 A61K39/00

    摘要: Improved plasmids and methods for nucleic acid-based vaccines. The use of epitopes, small immunologically relevant protein sequences that are capable of inducing both cellular and humoral responses that result in a protective or therapeutic immune response against large and complex pathogens for incorporation into nucleic acid-based vaccines. The structures and characteristics of gene expression systems that are capable of expressing multiple epitopes. A method of genetic immunization comprising the step of presenting multiple epitopes to an organism in need of said immunization. A plasmid for expression of multiple epitopes comprising a nucleic acid sequence encoding multiple epitopes, wherein each of said epitopes is capable of creating an immune response. A multivalent expression system as shown in Figure 8 and selected from the group consisting of two plasmids, two genes, IRES, and alternative splicing and a method of making a plasmid producing the appropriate nucleic acid sequence.