Mixed up minor groove binders: Convincing A.T specific compounds to recognize a G.C base pair

作者：Paul Ananya; Nanjunda Rupesh; Kumar Arvind; Laughlin Sarah; Nhili Raja; Depauw Sabine; Deuser Shelby Sheldon; Chai Yun; Chaudhary Arpana S; David Cordonnier Marie Helene; Boykin David W; Wilson W David^*

来源：Bioorganic & Medicinal Chemistry Letters, 2015, 25(21): 4927-4932.

DOI：10.1016/j.bmcl.2015.05.005

• Sequence specificity
• Mixed DNA recognition
• Rational design
• Heterocyclic diamidines
• Biophysical analysis

DNA minor-groove-binding compounds have limited biological applications, in part due to problems with sequence specificity that cause off-target effects. A model to enhance specificity has been developed with the goal of preparing compounds that bind to two AT sites separated by G.C base pairs. Compounds of interest were probed using thermal melting, circular dichroism, mass spectrometry, biosensor-SPR, and molecular modeling methods. A new minor groove binder that can strongly and specifically recognize a single G.C base pair with flanking AT sequences has been prepared. This multi-site DNA recognition mode offers novel design principles to recognize entirely new DNA motifs.

• 出版日期2015-11-1