Identification of toxin-binding protein involved in resistance to Cry1 toxins, and related screening methods
    1.
    发明申请
    Identification of toxin-binding protein involved in resistance to Cry1 toxins, and related screening methods 有权
    鉴定涉及抗Cry1毒素的毒素结合蛋白,以及相关筛选方法

    公开(公告)号:US20050064386A1

    公开(公告)日:2005-03-24

    申请号:US10897621

    申请日:2004-07-23

    摘要: The subject invention relates in part to the surprising and unexpected discovery that insects that are resistant to Bacillus thuringiensis Cry toxins have measurably altered alkaline phosphatase (ALP) activity as compared to insects that are susceptible to Cry toxins. This and other surprising discoveries reported herein have broad implications in areas such as managing and monitoring the development of insect resistance to B.t. toxins. For example, the subject invention provides a simple and fast assay (enzymatic or otherwise) for detecting ALP activity levels and thereby monitoring the development of resistance by insects to crystal protein insect toxins. There was no prior motivation or suggestion to go about resistance monitoring using this simple and easy approach.

    摘要翻译: 本发明部分地涉及惊人的和意想不到的发现,与对于Cry毒素敏感的昆虫相比,对苏云金芽孢杆菌Cry毒素具有抗性的昆虫具有可测量的碱性磷酸酶(ALP)活性。 这里报道的这个和其他惊人的发现在诸如管理和监测对B.t.的昆虫抗性的发展的领域具有广泛的影响。 毒素 例如,本发明提供了用于检测ALP活性水平的简单且快速的测定(酶或其它),从而监测昆虫对晶体蛋白质昆虫毒素的抗性的发展。 没有事先的动机或建议,使用这种简单而简单的方法来进行阻力监测。

    Peptides for inhibiting insects
    2.
    发明申请
    Peptides for inhibiting insects 有权
    用于抑制昆虫的肽

    公开(公告)号:US20050283857A1

    公开(公告)日:2005-12-22

    申请号:US11040472

    申请日:2005-01-21

    摘要: The subject invention pertains to the use of peptide fragments of cadherins (including cadherin-like proteins). The subject invention includes a cell (and use thereof) comprising a polynucleotide that expresses the peptide fragment. The subject invention includes methods of feeding the peptides to insects. In preferred embodiments, the peptides are fed to target insects together with one or more insecticidal proteins, preferably (but not limited to) B.t. Cry proteins. When used in this manner, the peptide fragment can not only enhance the apparent toxin activity of the Cry protein against the insect species that was the source of the receptor but also against other insect species. Preferably, the cadherin is a Bacillus thuringiensis (B.t.) insecticidal crystal protein (Cry) toxin receptor. Preferably, the peptide fragment is a binding domain of the receptor. In some preferred embodiments, the peptide is the binding domain nearest to the membrane proximal ectodomain. Corresponding domains are identifiable in a variety of B.t. toxin receptors.

    摘要翻译: 本发明涉及钙粘蛋白(包括钙粘蛋白样蛋白)的肽片段的用途。 本发明包括含有表达肽片段的多核苷酸的细胞(及其用途)。 本发明包括将肽喂入昆虫的方法。 在优选的实施方案中,将肽与一种或多种杀虫蛋白一起进食至靶昆虫,优选(但不限于)B.t. 哭泣蛋白质 当以这种方式使用时,肽片段不仅可以增强Cry蛋白对作为受体来源的昆虫物种的表观毒素活性,而且还可以抵抗其他昆虫物种。 优选地,钙粘蛋白是苏云金芽孢杆菌(B.t.)杀虫晶体蛋白(Cry)毒素受体。 优选地,肽片段是受体的结合结构域。 在一些优选的实施方案中,肽是最接近膜近端胞外域的结合结构域。 相应的域可以在各种B.t. 毒素受体。