Alternate interactions define the binding of peptides to the MHC molecule IA(b).
Liu X, Dai S, Crawford F, Fruge R, Marrack P, Kappler J. Alternate interactions define the binding of peptides to the MHC molecule IA(b). Proc Natl Acad Sci U S A. 2002 Jun 25; 99(13):8820-5.