title: Inter-locus and intra-allelic polymorphisms of HLA class I antigen gene mRNA.
abstract: We have constructed cDNA clone libraries from two lymphoblastoid cell lines, JY (HLA-A2, B7, C untypeable) and LB (HLA-A28, B40, Cw3), and isolated clones encoding class I HLA antigens. We have characterized short oligonucleotide probes derived from the coding region of the HLA class I antigens which are specific for the HLA-A and -B loci. These probes have been used to subdivide the class I cDNA clones into subclasses. DNA sequencing of several HLA-A and -B related clones has allowed us to extend the primary structural characterization of these cell-surface antigens. This analysis has also detected a sequence polymorphism at the HLA-A locus, indicating that the previously considered homozygous typing cell line LB expresses two alleles of similar, although not identical, serological specificity.
mesh_terms: D000483:Alleles; D000595:Amino Acid Sequence; D001402:B-Lymphocytes / Q000276:immunology; D001483:Base Sequence; D002460:Cell Line; D003001:Cloning, Molecular; D004247:DNA / Q000378:metabolism; D005796:Genes; D006680:HLA Antigens / Q000235:genetics*; D006801:Humans; D009693:Nucleic Acid Hybridization; D010957:Plasmids; D011110:Polymorphism, Genetic; D012333:RNA, Messenger / Q000235:genetics*
chemical_list: D006680:HLA Antigens; D012333:RNA, Messenger; D004247:DNA