Design, synthesis and DNA binding properties of orthogonally positioned diamino containing polyamide f-IPI
作者:Balaji Babu、Yang Liu、Adam Plaunt、Camille Riddering、Ross Ogilvie、Laura Westrate、Ryan Davis、Amanda Ferguson、Hilary Mackay、Toni Rice、Sameer Chavda、David Wilson、Shicai Lin、Konstantinos Kiakos、John A. Hartley、Moses Lee
DOI:10.1016/j.bbrc.2010.12.073
日期:2011.1
An orthogonally positioned diamino/dicationic polyamide f-IPI 2 was synthesized. It has enhanced binding affinity, and it showed comparable sequence specificity to its monoamino/monocationic counterpart f-IPI 1. Results from CD and DNase I footprinting studies confirmed the minor groove binding and selectivity of polyamides 1 and 2 for the cognate sequence 5'-ACGCGT-3'. SPR studies provided their binding constants: 2.4 x 10(8) M-1 for diamino 2, which is similar to 4 times higher than 5.4 x 10(7) M-1 for its monoamino analogue 1. (C) 2010 Elsevier Inc. All rights reserved.