Das, M; Yang, T; Dong, J; Prasetya, F; Xie, Y; Wong, KHQ; Cheong, A; Das, M; Yang, T; Dong, J; Prasetya, F; Xie, Y; Wong, KHQ; Cheong, A; Woon, ECY; - view fewer (2018) Multiprotein Dynamic Combinatorial Chemistry: A Strategy for the Simultaneous Discovery of Subfamily‐Selective Inhibitors for Nucleic Acid Demethylases FTO and ALKBH3. Chemistry – An Asian Journal , 13 (19) pp. 2854-2867. 10.1002/asia.201800729.

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Abstract

Dynamic combinatorial chemistry (DCC) is a powerful supramolecular approach for discovering ligands for biomolecules. To date, most, if not all, biologically templated DCC systems employ only a single biomolecule to direct the self‐assembly process. To expand the scope of DCC, herein, a novel multiprotein DCC strategy has been developed that combines the discriminatory power of a zwitterionic “thermal tag” with the sensitivity of differential scanning fluorimetry. This strategy is highly sensitive and could differentiate the binding of ligands to structurally similar subfamily members. Through this strategy, it was possible to simultaneously identify subfamily‐selective probes against two clinically important epigenetic enzymes: FTO (7 ; IC_{50} = 2.6 μm ) and ALKBH3 (8 ; IC_{50} = 3.7 μm ). To date, this is the first report of a subfamily‐selective ALKBH3 inhibitor. The developed strategy could, in principle, be adapted to a broad range of proteins; thus it is of broad scientific interest.

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