GAMMA-SECRETASE SUBSTRATE AND METHODS OF USE
    6.
    发明申请
    GAMMA-SECRETASE SUBSTRATE AND METHODS OF USE 有权
    GAMMA-SECRETASE基板和使用方法

    公开(公告)号:US20110143954A2

    公开(公告)日:2011-06-16

    申请号:US12776141

    申请日:2010-05-07

    摘要: Polypeptide substrates based on modifications or fragments of the various APP isoforms, assay methods based on the use of these substrates, and screening methods directed toward identifying inhibitors of γ-secretase activity. The assay methods and the screening methods are adapted for use in high throughput multi-well plate assay apparatuses. In many embodiments the substrate polypeptides are labeled for ease of detection, and/or may bind specific ligands that themselves are labeled. Generally the labels promote high specificity as well as high sensitivity of detection. These features render the assay and screening methods that employ the labeled substrates especially suited for use in high throughput assay formats. This disclosure further identifies small polypeptides based on a subsequence motif of Aβ that are shown herein to be potent inhibitors of the activity of γ-secretase.

    摘要翻译: 基于各种APP同种型的修饰或片段的多肽底物,基于这些底物的使用的测定方法以及用于鉴定γ-分泌酶活性抑制剂的筛选方法。 测定方法和筛选方法适用于高通量多孔板测定装置。 在许多实施方案中,底物多肽被标记以便于检测,和/或可以结合其本身被标记的特异性配体。 通常,标记物具有高度的特异性和高灵敏度的检测。 这些特征使得使用标记底物的测定和筛选方法特别适用于高通量测定形式。 本公开进一步基于A&bgr的亚序列基序识别小多肽; 这在本文中显示为γ-分泌酶活性的有效抑制剂。