A new set of reagents and related software used for NGS based classical and non-classical HLA typing showing evidence for a greater HLA haplotype diversity.

A new set of reagents and related software used for NGS based classical and non-classical HLA typing showing evidence for a greater HLA haplotype diversity. Hum Immunol. 2020 Feb 28;: Authors: Alizadeh M, Picard C, Frassati C, Walencik A, Gauthier AC, Bennasar F, Verite F, Semana G Abstract To evaluate the HLA typing performance of a new Long-Range PCR NGS set of reagents and its dedicated software, a panel of 41 reference homozygous cell lines from the International Histocompatibility Working Group (IHWG) and a panel of 376 volunteer bone marrow donors were analyzed for classical and non-classical HLA class I and class II genes. All results, except HLA-DPB1, were obtained without any ambiguities at the 3rd field level. Based on the high resolution performance of the reagents, a number of new alleles have been described not only for classical but also for non-classical HLA class I genes, leading to a more accurate haplotype definition. Linkage disequilibrium between HLA-A and HLA-G genes has been defined at 4th field level of resolution. Moreover, for the first time, HLA-DQA2 and DQB2 polymorphisms and their linkage disequilibrium with DQB1 were described. PMID: 32122686 [PubMed - as supplied by publisher]
Source: Human Immunology - Category: Allergy & Immunology Authors: Tags: Hum Immunol Source Type: research