This form constitutes the precursor of the pore-forming protein: upon cleavage, the released N-terminal moiety (Gasdermin-C, N-terminal) binds to membranes and forms pores, triggering cell death. Pore-forming protein that causes membrane permeabilization and pyroptosis. Released upon cleavage and binds to membrane inner leaflet lipids. Homooligomerizes within the membrane and forms pores of 10-15 nanometers (nm) of inner diameter, triggering pyroptosis. The functional mechanisms and physiological proteases that cleave and activate this pore-forming protein are unknown.