Reduced models by tBid. Reduced models of apoptosis under induction by tBid (mitochondrial apoptosis; [tBid] = 25 nM and [FasL]0 = 0), with time course validations. In both cases, the time courses of the full and reduced models essentially overlap. (a) HeLa cell induced by tBid. (b) Jurkat T* cell induced by tBid.