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    • 1. 发明授权
    • Method for determining genotoxicity using non-fluorescent proteins
    • 使用非荧光蛋白测定遗传毒性的方法
    • US08729334B2
    • 2014-05-20
    • US13578183
    • 2011-03-31
    • Hyon El ChoySeok-Yong Choi
    • Hyon El ChoySeok-Yong Choi
    • A61K49/00C12N15/12
    • G01N33/5014A01K67/0275A01K2217/052A01K2227/40A01K2267/0393G01N33/5088
    • The present invention relates to a method for determining a genotoxicity of a test substance, comprising the steps of: (a) transforming a fish with a nucleotide sequence encoding a non-fluorescent fluorescence protein with a mutation; (b) treating a test substance to the transformed fish; and (c) measuring a fluorescence in the test substance-treated fish, wherein the fluorescence is generated by reversion of the non-fluorescent fluorescence protein to the fluorescence protein due to a back mutation of the nucleotide sequence in the test substance-treated fish. According to the present invention, MutaFish system, Zebrafish (Brachydanio rerio) line, in which the fluorescence protein variant, preferably wild type EGFP variant (EGFPmut) is transformed, provides a much excellent animal system for measuring a genotoxicity of a test substance via production of a fluorescent fry larvae generated through reversion of the fluorescent protein variant caused by treatment of the test substance. Accordingly, the MutaFish system of the present invention may determine a genotoxicity of a test substance in much more simple and high-throughput manner in an eukaryote to which the conventional methods (e.g., Ames test) may be not applied.
    • 本发明涉及测定物质的基因毒性的方法,其特征在于,包括以下步骤:(a)用编码具有突变的非荧光荧光蛋白的核苷酸序列转化鱼; (b)将经检测的物质处理至经转化的鱼; 和(c)测定被检物质处理过的鱼中的荧光,其中,由于检测物质处理的鱼中的核苷酸序列的反向突变,通过将非荧光荧光蛋白逆转为荧光蛋白而产生荧光。 根据本发明,转化了荧光蛋白变体,优选野生型EGFP变体(EGFPmut)的MutaFish系统斑马鱼(Brachydanio rerio)系提供了非常优异的用于通过生产测量测试物质的基因毒性的动物系统 通过由测试物质的处理引起的荧光蛋白质变体的逆转产生的荧光鱼苗。 因此,本发明的MutaFish系统可以以更加简单和高通量的方式在常规方法(例如Ames测试)中不能应用的真核细胞中确定测试物质的基因毒性。
    • 2. 发明申请
    • METHOD FOR DETERMINING GENOTOXICITY USING NON-FLUORESCENT PROTEINS
    • 使用非荧光蛋白测定细胞毒性的方法
    • US20130024955A1
    • 2013-01-24
    • US13578183
    • 2011-03-31
    • Hyon El ChoySeok-Yong Choi
    • Hyon El ChoySeok-Yong Choi
    • A61K49/00C12N15/12
    • G01N33/5014A01K67/0275A01K2217/052A01K2227/40A01K2267/0393G01N33/5088
    • The present invention relates to a method for determining a genotoxicity of a test substance, comprising the steps of: (a) transforming a fish with a nucleotide sequence encoding a non-fluorescent fluorescence protein with a mutation; (b) treating a test substance to the transformed fish; and (c) measuring a fluorescence in the test substance-treated fish, wherein the fluorescence is generated by reversion of the non-fluorescent fluorescence protein to the fluorescence protein due to a back mutation of the nucleotide sequence in the test substance-treated fish. According to the present invention, MutaFish system, Zebrafish (Brachydanio rerio) line, in which the fluorescence protein variant, preferably wild type EGFP variant (EGFPmut) is transformed, provides a much excellent animal system for measuring a genotoxicity of a test substance via production of a fluorescent fry larvae generated through reversion of the fluorescent protein variant caused by treatment of the test substance. Accordingly, the MutaFish system of the present invention may determine a genotoxicity of a test substance in much more simple and high-throughput manner in an eukaryote to which the conventional methods (e.g., Ames test) may be not applied.
    • 本发明涉及测定物质的基因毒性的方法,其特征在于,包括以下步骤:(a)用编码具有突变的非荧光荧光蛋白的核苷酸序列转化鱼; (b)将经检测的物质处理至经转化的鱼; 和(c)测定被检物质处理过的鱼中的荧光,其中,由于检测物质处理的鱼中的核苷酸序列的反向突变,通过将非荧光荧光蛋白逆转为荧光蛋白而产生荧光。 根据本发明,其中荧光蛋白变体,优选野生型EGFP变体(EGFPmut)被转化的MutaFish系统斑马鱼(Brachydanio rerio)系提供了非常优异的用于通过生产测量测试物质的基因毒性的动物系统 通过由测试物质的处理引起的荧光蛋白质变体的逆转产生的荧光鱼苗。 因此,本发明的MutaFish系统可以以更加简单和高通量的方式在常规方法(例如Ames测试)中不能应用的真核细胞中确定测试物质的基因毒性。