title: Correlation between an HLA-DQ alpha length polymorphism of messenger RNA and serologically defined specificities (DQw1, DRw53, DR3+5).
abstract: mRNAs for the two chains of the HLA-DQ molecule were analyzed, in particular the DQ alpha mRNA whose polymorphism had previously been suggested (Schenning et al. 1984). Northern blot transfers of the mRNA of 12 LCLs and of B lymphocytes from a healthy donor were carried out. We report that a length polymorphism of DQ alpha mRNA exists, and we show that it can be correlated with serologically defined specificities (DQw1, DRw53, DR3+5). This correlation could be explained by a linkage disequilibrium, as these specificities are considered to be different from those carried by the DQ molecule (except for the DQw1 specificity).
mesh_terms: D004262:DNA Restriction Enzymes; D005802:Genes, MHC Class II; D005819:Genetic Markers; D006683:HLA-DQ Antigens; D006684:HLA-DR Antigens; D015803:HLA-DR3 Antigen; D015805:HLA-DR5 Antigen; D000949:Histocompatibility Antigens Class II / Q000235:genetics*; D006801:Humans; D011110:Polymorphism, Genetic; D012326:RNA Splicing; D012333:RNA, Messenger / Q000235:genetics*
chemical_list: D005819:Genetic Markers; D006683:HLA-DQ Antigens; D006684:HLA-DR Antigens; D015803:HLA-DR3 Antigen; D015805:HLA-DR5 Antigen; D000949:Histocompatibility Antigens Class II; D012333:RNA, Messenger; D004262:DNA Restriction Enzymes