Discovery of G-quadruplex stabilizing ligands through direct ELISA of a one-bead-one-compound library
作者:James E. Redman、Sylvain Ladame、Anthony P. Reszka、Stephen Neidle、Shankar Balasubramanian
DOI:10.1039/b611716c
日期:——
We describe the identification of small-molecule G-quadruplex ligands using a direct ELISA screen of a one-bead-one-compound library of unnatural polyamides displayed on a branched linker with a biotin tag. This general purpose parallel screen for small molecule–oligonucleotide interactions was validated by surface plasmon resonance and ELISA of resynthesized compounds. Linear polyamides displayed similar rankings in their affinity for quadruplex as their branched counterparts. Quadruplex affinity as judged by these surface based techniques was a useful predictor of the ability of the ligands to stabilize the quadruplex to thermal unfolding in solution.