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    • 14. 发明申请
    • Method of detecting micronucleus in cell
    • 检测细胞中微核的方法
    • US20070207452A1
    • 2007-09-06
    • US11729529
    • 2007-03-29
    • Hirobumi SuzukiAtsushi Miyawaki
    • Hirobumi SuzukiAtsushi Miyawaki
    • C12Q1/00C12Q1/68
    • G01N33/5017
    • The present invention provides a method of detecting a micronucleus in a living cell to be measured, without having to fixate the cell, characterized by comprising generating a mother cell by introducing a gene encoding a single or a plurality of nucleus-related proteins and a gene encoding a fluorescence protein into a culture cell, and making then expressed in the cell, subjecting the cell to a treatment for a toxicity test or a mutagenicity test of a test substance, performing a limited excitation which makes a region of the micronucleus emit fluorescence limitedly, and quantitatively measuring an amount of the fluorescence corresponding to a component of the nucleus-related protein.
    • 本发明提供一种检测待测细胞中的微核的方法,而不必固定细胞,其特征在于包括通过引入编码单个或多个核相关蛋白的基因和基因产生母细胞 将荧光蛋白编码到培养细胞中,然后在细胞中表达,对细胞进行毒性试验或试验物质的诱变试验处理,进行有限激发,使微核区域有限地发射荧光 并定量测定与核相关蛋白质的成分相对应的荧光量。
    • 17. 发明授权
    • Method for mutagenesis
    • 诱变方法
    • US06673610B2
    • 2004-01-06
    • US09920922
    • 2001-08-02
    • Atsushi MiyawakiAsako Sawano
    • Atsushi MiyawakiAsako Sawano
    • C12N1500
    • C12N15/102C12Q1/6827C12Q2537/155C12Q2525/185
    • The present invention provides an entirely new method for mutagenesis, which is simple, speedy, economical, and widely-applicable. A method for mutagenesis comprising steps of: DNA synthesis in which primers which have mutations and a phosphorylated 5′-terminus are annealed to a template DNA and then subjected to an elongation reaction using a thermostable high-fidelity DNA polymerase, after which the phosphorylated 5′-terminus and the elongated terminus are ligated by means of a thermostable DNA ligase to synthesize a circular DNA containing said primers; digestion in which at least DNAs other than the amplified circular DNA are digested into several fragments; and double-stranded DNA synthesis in which, with the several fragments obtained in the above step of digestion as megaprimers, said megaprimers are annealed to said circular DNA synthesized in the above step of DNA synthesis, followed by an elongation reaction performed using said thermostable high-fidelity DNA polymerase.
    • 本发明提供了一种全新的诱变方法,其简单,快速,经济且广泛适用。一种诱变方法,包括以下步骤:DNA合成,其中具有突变和磷酸化5'-末端的引物退火 模板DNA,然后使用热稳定性高保真DNA聚合酶进行延伸反应,然后通过热稳定DNA连接酶连接磷酸化的5'末端和细长末端,以合成含有所述引物的环状DNA;消化 其中至少将经扩增的环状DNA以外的DNA消化成几个片段; 和双链DNA合成,其中在上述消化步骤中获得的几个片段作为大引物,所述大引物与上述DNA合成步骤中合成的所述环状DNA退火,然后使用所述耐热高分子量聚合物进行伸长反应, 保真DNA聚合酶。