Disubstituted quinazoline derivatives as a new type of highly selective ligands for telomeric G-quadruplex DNA
作者:Zeng Li、Jia-Heng Tan、Jin-Hui He、Yi Long、Tian-Miao Ou、Ding Li、Lian-Quan Gu、Zhi-Shu Huang
DOI:10.1016/j.ejmech.2011.10.057
日期:2012.1
A series of 2,4-disubstituted quinazoline derivatives found to be a new type of highly selective ligand to bind with telomeric G-quadruplex DNA, and their biological properties were reported for the first time.Their interactions with telomeric G-quadruplex DNA were evaluated by using fluorescence resonance energy transfer (FRET) melting assay, circular dichroism (CD) spectroscopy, surface plasmon resonance
一系列2,4-二取代喹唑啉衍生物是与端粒G-四链体DNA结合的新型高选择性配体,并首次报道了它们的生物学特性,并评估了它们与端粒G-四链体DNA的相互作用。通过使用荧光共振能量转移(FRET)熔融测定,圆二色性(CD)光谱,表面等离振子共振(SPR),核磁共振(NMR)和分子建模。我们的结果表明,这些衍生物可以很好地识别G-四链体,并且对G-四链体的选择性高于双链体DNA。结构-活性关系(SARs)研究表明,喹唑啉的解构和酰胺侧链的长度对其与G-四链体的相互作用很重要。此外,