Table 3.
Frequencies of B:9-23 and B:19A peptide-responsive hybridomas derived from mice with the transgenic TCR alpha chain paired with endogenous TCR β chains.
Insulin peptide response* | 12-4.1 TCR α+Cα−/− Transgenic mice | 12-4.4 TCR α+Cα−/− Retrogenic mice |
---|---|---|
positive | 14/907 (1.54%) |
4/496 (0.8%) |
negative | 893/907 (98.46%) |
491/496 (99.2%) |
Anti-insulin B:9-23 or B:19A peptide stimulation was evaluated with LacZ activity assay for all hybridomas. Both B:9-23 peptide responsive positive and non-responsive negative hybridomas responded to stimulation by anti-CD3 antibodies.