title: Sequence of a new DR12 allele with two silent mutations that affect PCR-SSP typing.
abstract: A new HLA-DR12 allele has been identified in a European Caucasoid bone marrow donor. The DRB1*12012 allele differs from DRB1*12011 by two silent substitutions at codons 72 and 78, two polymorphic positions used for DNA subtyping of the DR12 serotype. The co-occurence of the two nucleotide changes is unique to the DR12 group and results in a new PCR-SSP typing pattern. The complete HLA type of the donor is A24, A68; B55, B61; Cw*01, Cw*0304; DRB1*12012, DRB1*1402; DRB3*0101, DRB3*0202; DQB1*0301. HLA-DRB1*12012 is a rare allele as it occurs in < 0.2% of DR12 donors.
authors.affiliation: National Reference Laboratory for Histocompatibility, Transplantation Immunology Unit, University Hospital, Geneva, Switzerland.
authors.forename: R
authors.initials: R
authors.lastname: Zanone
authors.forename: F
authors.initials: F
authors.lastname: Bettens
authors.forename: J-M
authors.initials: JM
authors.lastname: Tiercy
mesh_terms: D000483:Alleles; D001483:Base Sequence; D006684:HLA-DR Antigens / Q000235:genetics* / Q000276:immunology; D059810:HLA-DR Serological Subtypes; D006650:Histocompatibility Testing / Q000379:methods; D006801:Humans; D008969:Molecular Sequence Data; D009154:Mutation; D016133:Polymerase Chain Reaction / Q000379:methods; D017422:Sequence Analysis, DNA / Q000379:methods; D012689:Sequence Homology, Nucleic Acid
chemical_list: D006684:HLA-DR Antigens; D059810:HLA-DR Serological Subtypes; C082411:HLA-DR12 antigen