Preparation of Deallergenized Proteins and Permuteins
    2.
    发明申请
    Preparation of Deallergenized Proteins and Permuteins 审中-公开
    脱敏蛋白和偏胰岛素的制备

    公开(公告)号:US20080254484A1

    公开(公告)日:2008-10-16

    申请号:US12130401

    申请日:2008-05-30

    IPC分类号: G01N33/53

    摘要: Modified proteins are disclosed that maintain enzymatic and insecticidal activity while displaying reduced or eliminated allergenicity. Epitopes which bind to anti-patatin antibodies were identified, and removed via site directed mutagenesis. Tyrosines were observed to generally contribute to the allergenic properties of patatin proteins. Removal of glycosylation sites was observed to reduce or eliminate antibody binding.Permuteins are also disclosed which have a rearranged amino acid sequence while retaining enzymatic activity.Deallergenized proteins and permuteins can be used as insecticidal materials, as nutritional supplements, and as immunotherapeutic agents.

    摘要翻译: 公开了修饰的蛋白质,其在显示减少或消除的变应原性的同时保持酶促和杀虫活性。 鉴定结合抗patatin抗体的表位,并通过定点诱变去除。 观察到酪氨酸通常有助于patatin蛋白的过敏性质。 观察到去除糖基化位点以减少或消除抗体结合。 还公开了具有重排的氨基酸序列同时保留酶活性的泛珠菌素。 脱敏蛋白和泛醇蛋白可用作杀虫剂,作为营养补充剂,以及作为免疫治疗剂。