This form constitutes the precursor of the pore-forming protein: upon cleavage, the released N-terminal moiety (Gasdermin-A, N-terminal) binds to membranes and forms pores, triggering cell death.; Pore-forming protein that causes membrane permeabilization and pyroptosis. Released upon cleavage in vitro of genetically engineered GSDMA, and binds to membrane inner leaflet lipids. Homooligomerizes within the membrane and forms pores of 10-15 nanometers (nm) of inner diameter, triggering pyroptosis. Binds to membrane inner leaflet lipids, such as phosphatidylinositol (4,5)-bisphosphate. The functional mechanisms and physiological proteases that cleave and activate this pore-forming protein are unknown.