FAS and leukemia: Interestingly, we observed that CD95 in B lymphoblastoid SKW6.4 and T leukaemia Hut78 cells appeared as two bands which are not the result of alternative splicing as assessed by RT-PCR (data not shown), while CD95 in T leukaemia cells J16 appeared as a single band on 10% SDS-PAGE (Figure 3A).