M4076 inhibits Ataxia telangiectasia-mutated (ATM) kinase activity with a sub-nanomolar potency and shows remarkable selectivity against other protein kinases, suppresses DSB repair, clonogenic cancer cell growth, and potentiates antitumor activity of ionizing radiation in cancer cell lines.
[1] Thomas F, et al. Cancer Res (2019) 79 (13_Supplement): 3500. [2] Zimmermann A, et al. Mol Cancer Ther. 2022 Jun 1;21(6):859-870.
















