Dramatic Change in the Tertiary Structure of Giant DNA without Distortion of the Secondary Structure Caused by Pteridine-Polyamine Conjugates
作者:Ning Chen、Shizuaki Murata、Kenichi Yoshikawa
DOI:10.1002/chem.200500135
日期:2005.8.5
Pteridine-polyamine conjugates, such as 2-polyamine (1,3-diaminopropane and spermine) substituted 6,7-dimethyl-3H-pteridine-4-one, induce a folding transition of a giant DNA molecule more effectively than the corresponding polyamines. However, since neither a DNA high-temperature shift of denaturation (Tm) curve nor distortion of the UV/fluorescence spectra is observed in a mixture of these compounds
哌啶-多胺共轭物(例如2-聚胺(1,3-二氨基丙烷和精胺)取代的6,7-二甲基-3H-哌啶-4-酮)比相应的聚胺更有效地诱导巨型DNA分子的折叠转变。但是,由于在这些化合物与DNA的混合物中既未观察到DNA高温变性(Tm)曲线的移动,也未观察到UV /荧光光谱的扭曲,因此它们不会与DNA双链体强烈地相互作用。