The diabetogenic mouse MHC class II molecule I-Ag7 is endowed with a switch that modulates TCR affinity.
Yoshida K, Corper AL, Herro R, Jabri B, Wilson IA, Teyton L. The diabetogenic mouse MHC class II molecule I-Ag7 is endowed with a switch that modulates TCR affinity. J Clin Invest. 2010 May; 120(5):1578-90.