作者:L. Strekowski、A. Strekowska、R. A. Watson、F. A. Tanious、L. T. Nguyen、W. D. Wilson
DOI:10.1021/jm00391a025
日期:1987.8
and independent tests have been introduced for studying the effect of DNA intercalating compounds on the bleomycin-mediated digestion of DNA in vitro. These methods are based on hyperchromic changes of DNA solution, changes in viscosity of DNA solution, and HPLC quantitative analysis of the four bases released from digested DNA. All three tests give comparable results. However, the viscometric method
引入了三个简单且独立的测试来研究DNA嵌入化合物对博来霉素介导的DNA体外消化的影响。这些方法基于DNA溶液的增色变化,DNA溶液粘度的变化以及从消化的DNA中释放出的四种碱基的HPLC定量分析。这三个测试均给出了可比的结果。但是,从技术上讲,粘度法是最简单的,同时也是最灵敏的。通过三个未融合的杂多芳族嵌入剂分子(即N- [2''-((二甲氨基)乙基] -4-噻吩-2'-嘧啶-2-胺(1N),N,N)扩增博来霉素介导的DNA降解-二甲基-2-[((4'-thien-2''-ylpyrimidin-2'-yl)thio]乙胺(1S)和新合成的2,5-bis [2'-[[2'' -(二甲氨基)乙基]硫代]嘧啶-4'基]噻吩(2)与这些化合物的相应DNA结合常数相关性很好,并且是浓度依赖性的。这些化合物的扩增活性随浓度增加而增加。迄今发现,具有强结合力的化合物2是博莱霉素在体外的最佳扩增剂。融合