a-Fodrin is a universally expressed membrane associated cytoskeletal protein consisting of alpha and beta subunits. The protein is important for maintaining normal membrane structure and supporting cell surface protein function. Alpha Fodrin is one of the important targets cleaved by caspases during apoptosis. The full length 240 kDa protein can be cleaved at several sites within its sequence by activated caspases generating N terminal 150 kDa, C terminal 120 kDa, and 35 kDa major products. Cleavage of alpha Fodrin leads to membrane malfunction and cell shrinkage.
