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    • 3. 发明申请
    • FUSION PROTEIN COMPRISING A SEQUENCE FROM A MAJOR COAT PROTEIN OF A PAPOVAVIRUS
    • 融合蛋白包含来自斑马鱼的主要涂层蛋白的序列
    • WO9950424A3
    • 1999-12-02
    • PCT/GB9900978
    • 1999-03-29
    • STANLEY MARGARET ANNEZHANG WEI
    • STANLEY MARGARET ANNEZHANG WEI
    • A61K39/00C07K14/025C12N7/04C12N15/62A61K39/12C07K19/00C12N5/10C12N7/01C12N7/02
    • C07K14/005A61K39/00C07K2319/00C12N7/00C12N2710/14143C12N2710/20022C12N2710/20023
    • Modified virus-like particles (VLPs) can comprise fusion proteins having sequence from a major coat protein of a papovavirus, e.g. L1 protein of HPV 16 or 18, in which the N-terminal of the sequence derived from the major coat protein is fused to a further peptide sequence. The VLPs can contain a full sequence of an L1 protein, or an L1 sequence with an N-terminal deletion, or an L1 sequence with an aminoacid substitution mutation, and optionally a C-terminal L1 sequence deletion. The peptide sequence fused to the N-terminal can be immunogenic e.g. from a protein of a pathogen such as a virus. The further peptide sequence can provide a binding domain for affinity purification of the VLP. Modified VLPs can retain the native conformation of the VLP structure while also presenting to the immune system of a subject immunised with the modified VLPs an epitope present on an N-terminal extension of the major coat protein sequence. Corresponding polynucleotides, expression vectors, plasmids, vectors and cells containing such polynucleotides are disclosed.
    • 修饰的病毒样颗粒(VLP)可以包含具有来自乳头瘤病毒的主要外壳蛋白的序列的融合蛋白,例如。 HPV 16或18的L1蛋白质,其中源自主要外壳蛋白的序列的N末端与另一个肽序列融合。 VLP可以含有L1蛋白或具有N-末端缺失的L1序列或具有氨基酸取代突变的L1序列和任选的C末端L1序列缺失的完整序列。 融合到N-末端的肽序列可以是免疫原性的 来自病原体如蛋白质的病毒。 另外的肽序列可以提供VLP的亲和纯化的结合结构域。 修饰的VLP可以保留VLP结构的天然构象,同时还向被修饰的VLP免疫的受试者的免疫系统呈递存在于主要外壳蛋白序列的N末端延伸上的表位。 公开了相应的多核苷酸,表达载体,质粒,载体和含有这种多核苷酸的细胞。