Site-specific cleavage of nucleic acids by photoreactive conjugates
摘要:
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。
Cationic Gold‐Catalyzed Intramolecular Cyclization of Substituted 1,5‐Diynes to Access Indenone Derivatives
作者:Galla V. Karunakar、Chittala Emmaniel Raju、Gottam Sreenivasulu、Perla Bharath Kumar、Veerabhushanam Kadiyala、Balasubramanian Sridhar
DOI:10.1002/asia.202101408
日期:2022.4.14
An efficient intramolecularcyclization reaction was developed to achieve indenone derivatives. The substituted 1,5-diyenes were converted to the cooresponding indenones via a gold-catalyzed organic transformation and moderate to excellent yields of the title molecules were obatained via formation of two C=O and one C−C bonds under mild reaction condtions in one pot.
Site-specific cleavage of nucleic acids by photoreactive conjugates
申请人:Florida State University Research Foundation, Inc.
公开号:US08242307B1
公开(公告)日:2012-08-14
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。
Lysine–enediyne conjugates as photochemically triggered DNA double-strand cleavage agents
作者:Serguei V. Kovalenko、Igor V. Alabugin
DOI:10.1039/b417012a
日期:——
Statistical analysis of DNA-photocleavage by two types of lysine-enediyne conjugates confirms that more double-strand breaks are produced than can be accounted for by coincident single-strand breaks.