Rabbit Anti-Human CASP8 polyclonal antibody for IHC-P. Caspase-8 binds to the death effector domain (DED) of FADD through an analogous DED domain present in tandem in the proform of the caspase-8 protein. Recruitment of caspase-8 to the Fas receptor results in oligomerization of the caspase-8 protein, which in turn drives its autoactivation through "self-cleavage". Activated caspase-8 then activates other downstream caspases including caspase-9, thereby commiting the cell to undergo apoptosis. This antibody also detects the processed forms (42/44kDa, 25kDA, and 14kDa) of caspase-8.