title: Identification of two new alleles HLA-DRB1*0312, DRB1*0432 and of a DRB3-negative DRB1*1313-positive haplotype.
abstract: Two new HLA-DRB1 alleles were identified in the course of routine class II molecular typing in Dutch Caucasoid. HLA-DRB1*0312 is similar to *03011 except for codon 57 (GAT-->AGC). DRB1*0432 is similar to *0413 but with a mutation at position 215, changing codon 72 (CGG-->CAG; Arg-->Gln). This sequence has never before been identified at this position. A DRB3-negative DRB1*1313 haplotype was identified in an individual from Indonesia. Monoclonal antibodies against DR52 were nonreactive with lymphocytes of this individual. The DRB1*1313-DRB3-negative haplotype probably represents a recombination of DRB1*13 and *08 haplotypes where the sequences telomeric of HV1 are derived from the DRB3-negative DRB1*0803 haplotype.
authors.affiliation: Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, The Netherlands.
authors.forename: J D
authors.initials: JD
authors.lastname: Anholts
authors.forename: W
authors.initials: W
authors.lastname: Verduijn
authors.forename: J
authors.initials: J
authors.lastname: Drabbels
authors.forename: A
authors.initials: A
authors.lastname: Mulder
authors.forename: I I
authors.initials: II
authors.lastname: Doxiadis
authors.forename: G M
authors.initials: GM
authors.lastname: Schreuder
mesh_terms: D000483:Alleles; D001483:Base Sequence; D006684:HLA-DR Antigens / Q000235:genetics*; D059811:HLA-DRB1 Chains; D059826:HLA-DRB3 Chains; D006239:Haplotypes; D006650:Histocompatibility Testing; D006801:Humans; D008969:Molecular Sequence Data
chemical_list: D006684:HLA-DR Antigens; D059811:HLA-DRB1 Chains; C553503:HLA-DRB1*03:12 antigen; C553507:HLA-DRB1*04:32 antigen; D059826:HLA-DRB3 Chains