Summary of T-cell responses of clone 60 effector cells against APCs with partial HLA-DR identity. This strategy allowed a definite dissection of the DR restriction of the T-cell response against the HOM-TES-14/SCP1 derived epitope p635-649. NE indicates not expressed; Yes indicates a significant and specific IFN-γ release in response to p635-649; No indicates that no significant response was observed in the context of the respective HLA-DR configuration (see also Figure 5).