Bioactivity | Z-IETD-FMK (Z-IE(OMe)TD(OMe)-FMK) is a selective and cell permeable caspase-8 inhibitor[1]. Z-IETD-FMK is also a granzyme B inhibitor[5]. | ||||||
Invitro | Z-IETD-FMK causes full inhibition only of the proapoptotic effect of TNFα with an IC50 of 0.46 μM[1]. Z-IETD-FMK and Z-VAD-FMK at non-toxic doses are found to be immunosuppressive and inhibit human T cell proliferation induced by mitogens and IL-2. They are shown to block NF-κB in activated primary T cells, but have little inhibitory effect on the secretion of IL-2 and IFN-γ during T cell activation[2]. Z-IETD-FMK inhibits the cleavage of caspase-8 and only partially inhibits the cleavage of caspase-3 and PARP. Z-IETD-FMK can prevent the execution of apoptosis in retinal cells exposed to different apoptotic stimuli[3]. | ||||||
Name | Z-IETD-FMK | ||||||
CAS | 210344-98-2 | ||||||
Sequence | Z-Ile-Glu-Thr-Asp-FMK | ||||||
Shortening | ZIETDFMK | ||||||
Formula | C30H43FN4O11 | ||||||
Molar Mass | 654.68 | ||||||
Transport | Room temperature in continental US; may vary elsewhere. | ||||||
Storage | Sealed storage, away from moisture
*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |