Proliferative responses of T cells from AE^−/− NZB mice to a panel of peptides spanning the sequence of murine RBC Band 3, and against the purified protein. Each bar represents the stimulation index of the peak response of T cells from individual mice aged 20 weeks. Each of the 92 peptides was tested on 6 mice. The horizontal line indicates the minimum level of a positive response (SI > 3).