Base-modified nucleotides mediate immune signaling in bacteria. - Zeng, Zhifeng; Hu, Zeyu; Zhao, Ruiliang; Rao, Jikai; Mestre, Mario Rodríguez; Liu, Yanqiu; Liu, Shunhang; Feng, Hao; Chen, Yu; He, Huan; Chen, Nuo; Zheng, Jinshui; et al. (Science, 2025)