title: Class II HLA-DC beta-chain DNA restriction fragments differentiate among HLA-DR2 individuals in insulin-dependent diabetes and multiple sclerosis.
abstract: HLA-DR2 allele is negatively associated with insulin-dependent diabetes and positively associated with multiple sclerosis (MS). A 2.2-kilobase-pair EcoRI DNA restriction fragment detected with a beta-chain HLA-DC cDNA probe was found to be strongly correlated with HLA-DR2 in the normal population, but was absent in HLA-DR2 insulin-dependent diabetic patients. This fragment was found in HLA-DR2 multiple sclerosis patients with the same frequency as in controls. A beta-chain HLA-DC 12-kilobase-pair BamHI fragment might differentiate multiple sclerosis patients from healthy individuals.
mesh_terms: D004262:DNA Restriction Enzymes; D003922:Diabetes Mellitus, Type 1 / Q000235:genetics* / Q000276:immunology; D005796:Genes; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II / Q000235:genetics*; D006801:Humans; D009103:Multiple Sclerosis / Q000235:genetics* / Q000276:immunology; D009896:Optic Atrophy / Q000235:genetics / Q000276:immunology; D011110:Polymorphism, Genetic; D013577:Syndrome
chemical_list: D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II; D004262:DNA Restriction Enzymes