title: HLA-DR and -DQ genotyping by PCR-SSO in Shanghai Chinese.
abstract: The polymorphism of HLA class II (HLA-DRB1, -DQA1 and -DQB1) were investigated in 89 Shanghai Han Chinese using polymerase-chain reaction amplification and oligonucleotide (PCR-SSO) typing. Of the 43 DRB1 alleles tested, 24 were observed. DRB1*0901 (16.85%), *0803 (9.55%), *1202 (9.55%) and *1501 (12.92%) were most frequent and account for the high frequencies of DR9, DR8, DR5 and DR2 specificities in this population. The alleles DRB1*0101, *0102 and *1001 had very low frequencies. Among the 8 DQA1 and 13 DQB1 alleles tested, only DQA1*0401 and DQB1*0402 were absent. DQA1*0301, and DQB1*0301 and *0303 were among the most common alleles of the two loci respectively. Unusual DRB1-DQA1-DQB1 haplotypes were observed and a DRB1 "new" allele was suggested.
authors.affiliation: Immunogenetics Laboratory, Shanghai Institute of Immunology, Shanghai Second Medical University, China.
authors.forename: F Q
authors.initials: FQ
authors.lastname: Wang
authors.forename: G
authors.initials: G
authors.lastname: Semana
authors.forename: R
authors.initials: R
authors.lastname: Fauchet
authors.forename: B
authors.initials: B
authors.lastname: Genetet
mesh_terms: D000483:Alleles; D002681:China; D005006:Ethnicity / Q000235:genetics*; D005787:Gene Frequency; D005802:Genes, MHC Class II; D006683:HLA-DQ Antigens / Q000235:genetics*; D059866:HLA-DQ beta-Chains; D006684:HLA-DR Antigens / Q000235:genetics*; D059811:HLA-DRB1 Chains; D000949:Histocompatibility Antigens Class II / Q000235:genetics; D006801:Humans; D015810:Linkage Disequilibrium; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic
chemical_list: D006683:HLA-DQ Antigens; D059866:HLA-DQ beta-Chains; C069051:HLA-DQB1 antigen; D006684:HLA-DR Antigens; D059811:HLA-DRB1 Chains; D000949:Histocompatibility Antigens Class II