title: Splits of the HLA DR2 antigen.
abstract: The reaction of ninety DR2 positive persons with 20 anti-DR2 sera were studied. Four of the panel and members of two families did not react with two of these anti-DR sera and were considered to have the short-split "DR2.2". DR2 positive samples reacting strongly with all anti-DR2 were designated "DR2.1".
mesh_terms: D002648:Child; D000939:Epitopes; D005260:Female; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II / Q000276:immunology*; D006801:Humans; D007518:Isoantibodies / Q000276:immunology; D008297:Male
chemical_list: D000939:Epitopes; D006684:HLA-DR Antigens; D000949:Histocompatibility Antigens Class II; D007518:Isoantibodies