Screen for inhibitors of chitinase
    12.
    发明授权
    Screen for inhibitors of chitinase 失效
    几丁质酶抑制剂筛选

    公开(公告)号:US5561051A

    公开(公告)日:1996-10-01

    申请号:US259409

    申请日:1994-06-14

    摘要: The present invention is directed to a method for screening samples for the identification of agents exhibiting potential fungicidal and insecticidal activity for a wide variety of agricultural, medical and pharmaceutical uses. The method utilizes cells that comprise a plasmid-born CTS gene of Saccharomyces cerevisiae, which allows for over expression of chitinase. Compounds that inhibit a hydrolyic action on methyl-umbelliferyltriacetyl chitotriose, but which are not toxic to the cells are detected by decrease in conversion of substrate

    摘要翻译: 本发明涉及一种用于筛选用于鉴定对各种农业,医疗和药物用途具有潜在的杀真菌和杀虫活性的试剂的方法。 该方法利用包含酿酒酵母的质粒出生的CTS基因的细胞,其允许过量表达几丁质酶。 通过降低底物的转化率来检测抑制对甲基伞形酯三乙酰基三头三糖的水解作用但对细胞无毒性的化合物

    Colorimetric assay for detecting fungal cell envelope perturbations
    13.
    发明授权
    Colorimetric assay for detecting fungal cell envelope perturbations 失效
    用于检测真菌细胞包膜扰动的比色测定法

    公开(公告)号:US5168040A

    公开(公告)日:1992-12-01

    申请号:US168831

    申请日:1988-03-16

    IPC分类号: C12Q1/02 C12Q1/04

    摘要: Methods of constructing and using gene expression systems to indicate the pertubation of fungal cell envelopes are provided. The recombinant genes produce indicator cleavage enzymes such as .beta.-galactosidase when galactose is able to enter the cell, despite the presence of glucose, through discontinuous cell envelopes. The indicator cleavage enzymes such as .beta.-galactosidase cleaves a colorimetric indicator placed in the media to produce an easily detected measurement of altered cell envelope permeability.

    摘要翻译: 提供构建和使用基因表达系统来指示真菌细胞包膜的渗透的方法。 当半乳糖通过不连续的细胞包膜能够进入细胞时,重组基因产生指示剂切割酶如β-半乳糖苷酶,尽管存在葡萄糖。 指示剂裂解酶如β-半乳糖苷酶切割放置在培养基中的比色指示剂,以产生容易检测的改变的细胞包膜通透性的测量值。

    Composition suitable for testing biological tissues and/or liquids, and
the method of use
    14.
    发明授权
    Composition suitable for testing biological tissues and/or liquids, and the method of use 失效
    适于测试生物组织和/或液体的组合物和使用方法

    公开(公告)号:US4331759A

    公开(公告)日:1982-05-25

    申请号:US165787

    申请日:1980-07-03

    摘要: The invention relates to a composition suitable for testing biological tissues and/or liquids, the composition consisting of:(a) a dye chosen from the xanthene, azine, oxazine or acridine series, or from water-soluble dyes of the "diazo" series, or triphenylmethane,(b) a medium compatible with the biological tissue and/or liquid,(c) a substance capable of rapidly de-energising the dye molecules when it encounters them (i.e. a quencher).The test method using said composition is also described.

    摘要翻译: 本发明涉及适于测试生物组织和/或液体的组合物,该组合物由以下组成:(a)选自呫吨,吖嗪,恶嗪或吖啶系的染料,或由“重氮”系列的水溶性染料 ,或三苯甲烷,(b)与生物组织和/或液体相容的培养基,(c)当染料分子遇到染料分子(即猝灭剂)时能够迅速断电的物质。 还描述了使用所述组合物的测试方法。