title: I-J alternates--a commentary.
mesh_terms: D000818:Animals; D005786:Gene Expression Regulation; D005802:Genes, MHC Class II; D000949:Histocompatibility Antigens Class II / Q000096:biosynthesis / Q000235:genetics*; D051379:Mice / Q000235:genetics* / Q000276:immunology; D008815:Mice, Inbred Strains / Q000235:genetics / Q000276:immunology
chemical_list: D000949:Histocompatibility Antigens Class II; C043911:I-J-antigen