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    • 57. 发明授权
    • Electroporation of prokaryotic cells
    • 原核细胞的电穿孔
    • US5186800A
    • 1993-02-16
    • US493253
    • 1990-03-14
    • William J. Dower
    • William J. Dower
    • C12M3/00C12N13/00C12N15/64C12N15/87
    • C12N15/87C12M35/02C12N13/00C12N15/64
    • Electroporation of prokaryotic cells is achieved by the application of high-intensity electric fields of short duration to reversibly permeabilize the cell walls. Preferably, the field strength of the applied will be at least about 5 kV/cm and the duration of the exposure will be in the range from 2 to 20 msec. Macromolecules may be introduced to the cells or obtained from the cells during this period of cell wall permeability. Most commonly, the method will be utilized for transformation of the cells with nucleic acids. Very high transformation efficiencies in the range from 10.sup.9 to 10.sup.10 cells/.mu.g and transformation frequencies approaching 80% and above have been achieved.
    • 通过应用短时间的高强度电场来可逆地渗透细胞壁来实现原核细胞的电穿孔。 优选地,施加的场强将为至少约5kV / cm,并且曝光的持续时间将在2至20毫秒的范围内。 在细胞壁渗透期间,大分子可以被引入细胞或从细胞获得。 最通常地,该方法将用于用核酸转化细胞。 转化效率达到109〜1010个/ g,转化率达到80%以上。