title: [Analysis of the HLA-DPA1 and HLA-DPB1 polymorphism of Zhejiang Han population by PCR-sequence based typing].
abstract: OBJECTIVE
  To investigate the polymorphisms of HLA-DPA1 and HLA-DPB1 loci of Han population in Zhejiang province of China.
  
  
  METHODS
  The alleles of HLA-DPA1 and HLA-DPB1 loci in 100 unrelated healthy individuals were analyzed using polymerase chain reaction-sequence based typing.
  
  
  RESULTS
  Eight HLA-DPA1 alleles and 19 HLA-DPB1 alleles were found in the population. The HLA-DPA1 alleles with higher frequencies were DPA1*020202 (47.0%), DPA1*010301 (38.5%) and DPA1*020101(10.5%). The HLA-DPB1 alleles with higher frequencies were DPB1*0501, DPB1*020102 and DPB1*040101. The frequencies were 39.5%, 13.5% and 13.0%, respectively. A total of 44 estimated DPA1-DPB1 haplotypes were detected. The HLA-DPA1*020202-DPB1*0501(29.5%) was the most frequent haplotype.
  
  
  CONCLUSIONS
  The polymorphism data of the HLA-DPA1 and -DPB1 were obtained in Han population in Zhejiang province of China. There was linkage disequilibrium between the two loci.
authors.affiliation: Clinical Laboratory, the First People's Hospital of Hangzhou, Hangzhou, Zhejiang, P.R. China. weijian_dai@163.com
authors.forename: Wei-jian
authors.initials: WJ
authors.lastname: Dai
authors.forename: Fa-ming
authors.initials: FM
authors.lastname: Zhu
authors.forename: Li-xing
authors.initials: LX
authors.lastname: Yan
authors.forename: Hong-can
authors.initials: HC
authors.lastname: Zhao
mesh_terms: D044466:Asian People / Q000208:ethnology* / Q000235:genetics*; D002681:China / Q000208:ethnology; D030541:Databases, Genetic; D005006:Ethnicity / Q000235:genetics*; D005260:Female; D005787:Gene Frequency; D056426:Genetic Loci / Q000235:genetics; D006682:HLA-DP Antigens / Q000235:genetics*; D059867:HLA-DP alpha-Chains; D059868:HLA-DP beta-Chains; D006239:Haplotypes; D006801:Humans; D015810:Linkage Disequilibrium; D008297:Male; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic
chemical_list: D006682:HLA-DP Antigens; D059867:HLA-DP alpha-Chains; D059868:HLA-DP beta-Chains; C071172:HLA-DPA1 antigen; C071170:HLA-DPB1 antigen