Tapasin enhances peptide-induced expression of H2-M3 molecules, but is not required for the retention of open conformers.

Lybarger L, Yu YY, Chun T, et al. "Tapasin enhances peptide-induced expression of H2-M3 molecules, but is not required for the retention of open conformers." J. Immunol.. 2001;167(4):2097-105.