title: I-J determinants as restriction and activation signals.
mesh_terms: D000818:Animals; D000939:Epitopes; D005802:Genes, MHC Class II; D000949:Histocompatibility Antigens Class II / Q000276:immunology*; D008213:Lymphocyte Activation; D051379:Mice; D008954:Models, Biological; D013601:T-Lymphocytes / Q000276:immunology; D006377:T-Lymphocytes, Helper-Inducer / Q000276:immunology; D050378:T-Lymphocytes, Regulatory / Q000276:immunology
chemical_list: D000939:Epitopes; D000949:Histocompatibility Antigens Class II