ARID1A stabilizes non-homologous end joining factors at DNA breaks induced by the G4 ligand pyridostatin. - Simões-Sousa S; Amin N; Lane KA; Harrod A; Pedersen M; Pardo M; Rasetti-Escargueil C; Kozik Z; Begg KAG; Ribeiro A; Banerjee S; Stucki M; et al. (Cell reports, 2025)