In the recent Nature, Wang et al. and Zhong et al. present the cryo-EM structures of Gasdermin B (GSDMB) pore and strucures of GSDMB in complex with a Shigella effector, IpaH7.8. The structures shed light on the structural mechanisms that govern GSDMB-mediated pyroptosis, a process that is regulated by pathogenic bacteria and alternative splicing.