title: Allelic variations in the human T cell receptor V beta 6.7 gene products.
abstract: Polymorphisms of human TCR gene products have been suggested by the description of a mAb, OT145, that identifies a subset of TCRs in some individuals but not in others (6). Here we demonstrate that this mAb detects a TCR allotype of the V beta 6.7 gene. Two allelic products of this V gene differ by two nonconservative amino acid substitutions. The mAb OT145 appears to react with V beta 6.7 a gene products ("+" allele), but not with V beta 6.7b gene products ("-" allele). This represents the first direct demonstration that TCR V gene allotypes exist and provides a possible explanation for immune responses under the control of TCR V genes and for disease associations with TCR V genes.
authors.affiliation: Department of Medicine, Cornell University Medical College, New York, New York 10021.
authors.forename: Y
authors.initials: Y
authors.lastname: Li
authors.forename: P
authors.initials: P
authors.lastname: Szabo
authors.forename: M A
authors.initials: MA
authors.lastname: Robinson
authors.forename: B
authors.initials: B
authors.lastname: Dong
authors.forename: D N
authors.initials: DN
authors.lastname: Posnett
mesh_terms: D000483:Alleles; D001483:Base Sequence; D015139:Blotting, Southern; D002460:Cell Line; D003001:Cloning, Molecular; D004247:DNA / Q000235:genetics; D005796:Genes; D014644:Genetic Variation; D006239:Haplotypes; D006801:Humans; D046911:Macromolecular Substances; D008969:Molecular Sequence Data; D015345:Oligonucleotide Probes; D010641:Phenotype; D016133:Polymerase Chain Reaction; D012150:Polymorphism, Restriction Fragment Length; D011948:Receptors, Antigen, T-Cell / Q000235:genetics*; D015183:Restriction Mapping; D013601:T-Lymphocytes / Q000276:immunology*
chemical_list: D046911:Macromolecular Substances; D015345:Oligonucleotide Probes; D011948:Receptors, Antigen, T-Cell; D004247:DNA