New Nucleotide-Competitive Non-Nucleoside Inhibitors of Terminal Deoxynucleotidyl Transferase: Discovery, Characterization, and Crystal Structure in Complex with …

R Costi, G Cuzzucoli Crucitti, L Pescatori…

Index: Costi, Roberta; Cuzzucoli Crucitti, Giuliana; Pescatori, Luca; Messore, Antonella; Scipione, Luigi; Tortorella, Silvano; Amoroso, Alessandra; Crespan, Emmanuele; Campiglia, Pietro; Maresca, Bruno; Porta, Amalia; Granata, Ilaria; Novellino, Ettore; Gouge, Jeroime; Delarue, Marc; Maga, Giovanni; Di Santo, Roberto Journal of Medicinal Chemistry, 2013 , vol. 56, # 18 p. 7431 - 7441

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Abstract

Terminal deoxynucletidyl transferase (TdT) is overexpressed in some cancer types, where it might compete with pol μ during the mutagenic repair of double strand breaks (DSBs) through the nonhomologous end joining (NHEJ) pathway. Here we report the discovery and characterization of pyrrolyl and indolyl diketo acids that specifically target TdT and behave as nucleotide-competitive inhibitors. These compounds show a selective toxicity toward ...