Design of New Bidentate Ligands Constructed of Two Hoechst 33258 Units for Discrimination of the Length of Two A<sub>3</sub>T<sub>3</sub> Binding Motifs
作者:Mikimasa Tanada、Saori Tsujita、Shigeki Sasaki
DOI:10.1021/jo051836t
日期:2006.1.1
The aim of this study is to develop bidentate minor-groove binders that bind the double binding motifs cooperatively. The new bidentate ligands (1) have been designed by connecting two Hoechst 33258 units with a polyether linker for cooperative binding with two remote A(3)T(3) sites of DNA. The linker is introduced to the benzimidazole ring so that it is located at the convex side of the Hoechst unit. DNA binding affinity of the ligands was evaluated by measuring surface plasmon resonance (SPR), circular dichroism, and fluorescence spectra. Interestingly, the bidentate ligands (1) did not show affinity to DNA1 with a single A(3)T(3) motif but showed selective affinity to DNA2 with two A(3)T(3) motifs. The Long Bis-H (1L) having a long polyether linker showed specific binding to DNA2(6) with two A3T3 motifs separated by six nonbinding base pairs. The Long Bis-H (1L) has also shown specific binding to the three-way junction DNA4 with two A(3)T(3) motifs. This study has demonstrated that DNA with double binding motifs can be selectively recognized by the newly designed bidentate ligands.
METHODS AND COMPOSITIONS RELATED TO VIRAL INHIBITION
申请人:Arya Dev P.
公开号:US20110046982A1
公开(公告)日:2011-02-24
Disclosed herein are compounds, compositions and methods related to viral inhibition. In some forms, the compounds, compositions and methods are related to binding RNA.
Methods and Compositions Related to Viral Inhibition
申请人:Clemson University Research Foundation (CURF)
公开号:US20160263231A1
公开(公告)日:2016-09-15
Disclosed herein are compounds, compositions and methods related to viral inhibition. In some forms, the compounds, compositions and methods are related to binding RNA.