Comparative <scp>HLA</scp> Alleles and Haplotypes of Bone Marrow Volunteers Recruiting in the Asian and European Parts of Russia

HLA typing of 9126 haematopoietic stem cell donors living in the Asian and European parts of Russia and identifying themselves as Russians was performed using NGS technology in 2-field resolution at the HLA-A, HLA-B, HLA-C, HLA-DRB1, and HLA-DQB1 loci. The study of donors in the Asian part of Russia disclosed 77 alleles at the HLA-A locus, 111 at the HLA-B locus, 58 at the HLA-C locus, 54 at the HLA-DRB1 locus, and 26 at the HLA-DQB1 locus. Donors of the European part of Russia are characterised by the following allelic diversity: 87 alleles at the HLA-A locus, 136 at the HLA-B locus, 72 at the HLA-C locus, 67 at the HLA-DRB1 locus, and 37 at the HLA-DQB1 locus. The most common five-locus haplotype in both populations is HLA-A*01:01 ~ HLA-C*07:01 ~ HLA-B*08:01 ~ HLA-DRB1*03:01 ~ HLA-DQB1*02:01. Throughout the study, 26 new alleles were revealed.