The present invention provides a polynucleotide cleavage agent switched on by photo-irradiation and a method of cleaving or decomposing a polynucleotide such as DNA or RNA using this agent switched on in this manner. More specifically, said polynucleotide cleavage agent switched on by photo-irradiation comprises cyclopropane or a 2,2-dihalogeno-cyclopropane ring between “A” unit and “B” unit, wherein said “A” unit is an aromatic group having an electron withdrawing property and is excited by photo-irradiation, and said “B” unit is a hydrophilic functional group. Said polynucleotide cleavage agent may further contain “C” unit which can recognize DNA sequences, and also a spacer molecule, if desired.
本发明提供了一种通过光照射开启的多核苷酸裂解剂,以及使用这种通过光照射开启的多核苷酸裂解剂裂解或分解 DNA 或 RNA 等多核苷酸的方法。更具体地说,所述通过光照射开启的多核苷酸裂解剂包括
环丙烷或介于 "A "单元和 "B "单元之间的 2,2-二卤代
环丙烷环,其中所述 "A "单元是具有取电子特性并通过光照射激发的芳香基团,而所述 "B "单元是亲
水官能团。所述多核苷酸裂解剂可进一步包含可识别 DNA 序列的 "C "单元,如果需要,还可包含一个间隔分子。