<unk>  is a multigene haplotype that covers a majority of the human major histocompatibility complex on chromosome 6. A multigene haplotype is set of inherited alleles covering several genes, or gene-alleles, common multigene haplotypes are generally the result of descent by common ancestry (share a recent common ancestor for that segment of the chromosome). Chromosomal recombination fragments multigene haplotypes as the distance to that ancestor increases in number of generations.<unk>  is a representation(by serotype) of a common HLA haplotype found in Western Eurasia. The haplotype can be written in an extended form covering the major histocompatibility loci as follows: HLA Cw*0702 : B*0702 : DRB1*1501 : DQA1*0102 : DQB1*0602 The older literature may describe this haplotype in two different ways. One<unk> -DR2-DQ6 derives from the fact that<unk>  is a split antigen of the DR2 broad antigen serotype. The other<unk> -DR2-DQ1 stems from the fact that DQ1 is an alpha chain serotype that is now covered by the beta chain type DQ5 and<unk>  (DQ1 pairs with DQ5 and<unk>  by cis-haplotype pairing). There are two major subhaplotypes one that is preceded on its telomeric side by HLA A*0301 and the other by HLA A*0201. The A*0301 bearing haplotype (HLA A3-B7-DR15-DQ6) is described as the longest known multgene haplotype in humans.
HLA B7-DR15-DQ6
HLA-DQ1
HLA-DQB1
Thompson and Epstein classification
Lauge-Hansen classification
C-ANCA
F-100 and F-75 
2F5 antibody