A process of forming a double strand cleavage in DNA includes providing a reaction mixture containing double stranded DNA having a break in a first strand defining a target site in a second strand. The method continues by adding to the reaction mixture a photoreactive lysine conjugate selected from a lysine-enediyne conjugate, a lysine-acetylene conjugate or a combination thereof, for a time sufficient for the lysine conjugate to bind to the DNA adjacent the target site. The reaction mixture is then irradiated with electromagnetic radiation sufficient to photoactivate the lysine conjugate to cleave the second strand adjacent the target site.
在 DNA 中形成双链切割的过程包括提供一个反应混合物,其中包含具有第一链中断的双链 DNA,在第二链中定义了一个靶位点。该方法继续通过向反应混合物中添加选择自赖
氨酸-烯二炔共轭物、赖
氨酸-
乙炔共轭物或两者的光反应性赖
氨酸共轭物,以使赖
氨酸共轭物足够时间结合到靶位点附近的 DNA。然后,用足够的电磁辐射照射反应混合物,以激活赖
氨酸共轭物并切割靶位点附近的第二链。