作者:Michael J. B. Moore、Francisco Cuenca、Mark Searcey、Stephen Neidle
DOI:10.1039/b607707b
日期:——
A number of amide-linked oligopyrroles based on distamycin molecules have been synthesized by solid-state methods, and their interactions with a human intramolecular G-quadruplex have been measured by a melting procedure. Several of these molecules show an enhanced ratio of quadruplex vs. duplex DNA binding compared to distamycin itself, including one with a 2,5-disubstituted pyrrole group. Quadruplex affinity increases with the number of pyrrole groups, and it is suggested that this is consistent with a mixed groove/G-quartet stacking binding mode.
已经通过固态方法合成了多个基于二氟氨基酸分子的酰胺链接的寡吡咯,并通过熔化程序测量了它们与人类分子内G四聚体的相互作用。与二氟氨基酸本身相比,这些分子中有几个表现出增强的四聚体与双链DNA结合的比率,其中包括一个具有2,5-二取代吡咯基团的分子。随吡咯基团数量的增加,四聚体的亲和力增强,建议这与混合沟槽/G四聚体堆叠结合模式一致。