SELECTIVE POSTTRANSLATIONAL MODIFICATION OF PHAGE-DISPLAYED POLYPEPTIDES
    1.
    发明申请
    SELECTIVE POSTTRANSLATIONAL MODIFICATION OF PHAGE-DISPLAYED POLYPEPTIDES 审中-公开
    噬菌体展示多肽的选择性后期修饰

    公开(公告)号:WO2007047301A2

    公开(公告)日:2007-04-26

    申请号:PCT/US2006039711

    申请日:2006-10-11

    Abstract: The invention relates to posttranslational modification of phage-displayed polypeptides. These displayed polypeptides comprise at least one unnatural amino acid, e.g., an aryl-azide amino acid such as p-azido-L-phenylalanine, or an alkynyl-amino acid such as para- propargyloxyphenylalanine, which are incorporated into the phage-displayed fusion polypeptide at a selected position by using an in vivo orthogonal translation system comprising a suitable orthogonal aminoacyl-tRNA synthetase and a suitable orthogonal tRNA species. These unnatural amino acids advantageously provide targets for posttranslational modifications such as azide-alkyne [3+2] cycloaddition reactions and Staudinger modifications.

    Abstract translation: 本发明涉及噬菌体展示多肽的翻译后修饰。 这些显示的多肽包含至少一个非天然氨基酸,例如芳基叠氮氨基酸如对叠氮基-L-苯丙氨酸或炔基 - 氨基酸如对羟基羟基苯丙氨酸,其被并入噬菌体展示的融合物 通过使用包含合适的正交氨酰-tRNA合成酶和合适的正交tRNA物质的体内正交翻译系统,在选定位置上的多肽。 这些非天然氨基酸有利地提供翻译后修饰的靶标,例如叠氮炔 - 炔[3 + 2]环加成反应和施陶丁格修饰。

    SELECTIVE POSTTRANSLATIONAL MODIFICATION OF PHAGE-DISPLAYED POLYPEPTIDES

    公开(公告)号:WO2007047301A3

    公开(公告)日:2007-04-26

    申请号:PCT/US2006/039711

    申请日:2006-10-11

    Abstract: The invention relates to posttranslational modification of phage-displayed polypeptides. These displayed polypeptides comprise at least one unnatural amino acid, e.g ., an aryl-azide amino acid such as p -azido-L-phenylalanine, or an alkynyl-amino acid such as para- propargyloxyphenylalanine, which are incorporated into the phage-displayed fusion polypeptide at a selected position by using an in vivo orthogonal translation system comprising a suitable orthogonal aminoacyl-tRNA synthetase and a suitable orthogonal tRNA species. These unnatural amino acids advantageously provide targets for posttranslational modifications such as azide-alkyne [3+2] cycloaddition reactions and Staudinger modifications.

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