title: [Distribution of HLA class II antigens and allele linkage disequilibrium in the population of Vojvodina].
abstract: BACKGROUND
  Polymorphism of human leucocyte antigens (HLA) is important in transplantation medicine, anthropological studies and paternity testing.
  
  
  METHODS
  We investigated polymorphisms of HLA class II in population of Vojvodina by means of serologic typing using microlymphocitotoxicity test. We calculated the HLA-DR and HLA-DQ gene frequencies in 174 subjects. Haplotype frequencies, coefficient of linkage disequilibrium (delta values) and their statistical significant levels, were analyzed on the basis of these data.
  
  
  RESULTS
  The most frequent HLA-DR and HLA-DQ alleles were: DR5(11) (gene frequency 0.138), DR4 (gene frequency 0.083), DR1 (gene frequency 0.077), DQ1 (gene frequency 0.388), DQ3 (gene frequency 0.197), and DQ2 (gene frequency 0.09). The highest positive values of coefficient of linkage disequilibrium (delta) were calculated for the following haplotypes: DR1DQ1 (delta value 0.07308708), DR2DQ1 (delta value 0.059846528), DR3DQ2 (delta value 0.06193263), DR2(15)DQ1 (delta value 0.039186022), DR5(11)DQ3(7) (delta value 0.04969439), DR7DQ2 (delta value 0.057985517). Significant differences between observed vs. expected haplotype frequencies were also considered for these haplotypes.
  
  
  CONCLUSIONS
  This study indicates distinctiveness and specificity of the population of Vojvodina and highlights the importance of determining HLA frequencies in endogamic groups of Serbia.
authors.affiliation: vukuna@EUnet.yu
authors.forename: S
authors.initials: S
authors.lastname: Vojvodić
authors.forename: B
authors.initials: B
authors.lastname: Belić
mesh_terms: D005787:Gene Frequency; D005802:Genes, MHC Class II / Q000235:genetics; D006683:HLA-DQ Antigens / Q000235:genetics*; D006684:HLA-DR Antigens / Q000235:genetics*; D006239:Haplotypes; D006801:Humans; D015810:Linkage Disequilibrium; D010641:Phenotype; D011110:Polymorphism, Genetic; D015022:Yugoslavia
chemical_list: D006683:HLA-DQ Antigens; D006684:HLA-DR Antigens
vernacular_title: Distribucija HLA antigena II klase i neravnoteza vezivanja alela u populaciji Vojvodine.