Tuning urea–phenanthridinium conjugates for DNA/RNA and base pair recognition
摘要:
A series of novel urea-phenanthridine conjugates was prepared. The variation of linker length connecting two urea-phenanthridinium conjugates regulated their binding mode toward double stranded polynucleotides, consequently controlling selectivity of compounds toward ds-RNA over ds-DNA stabilization as well as selective fluorescence response toward addition of G-C base pair and A-U(T) base pair containing polynucleotides. (C) 2008 Elsevier Ltd. All rights reserved.
Tuning urea–phenanthridinium conjugates for DNA/RNA and base pair recognition
作者:Marijana Radić Stojković、Ivo Piantanida
DOI:10.1016/j.tet.2008.05.142
日期:2008.8
A series of novel urea-phenanthridine conjugates was prepared. The variation of linker length connecting two urea-phenanthridinium conjugates regulated their binding mode toward double stranded polynucleotides, consequently controlling selectivity of compounds toward ds-RNA over ds-DNA stabilization as well as selective fluorescence response toward addition of G-C base pair and A-U(T) base pair containing polynucleotides. (C) 2008 Elsevier Ltd. All rights reserved.
Permanent positive charge strongly influences DNA/RNA binding and antiproliferative activity of urea–phenanthridinium conjugates
novel methylated derivatives interacted with DNA/RNA not only at pH 5 but also at pH 7, and some compounds switched the DNA binding mode from the minor groove binding (non-methylated derivatives) to the intercalation (novel, methylated derivatives). Moreover, selective ds-RNA over ds-DNA thermal stabilization of previously observed non-methylated derivatives was reversed for novel, methylated derivatives