Failed Genetic Protection: Type 1 Diabetes in the Presence of HLA-DQB1*06:02

Certain human leucocyte antigen (HLA) class II genes increase the risk for type 1 diabetes (T1D) development while others provide protection from disease development. HLA class II alleles encode major histocompatibility complex proteins on antigen presenting cells, which function to present peptides and activate CD4 T-cells. The DRB1*15:01 (DR15)-DQA1*01:02-DQB1*06:02 (DQ6) haplotype provides dominant protection across all stages of T1D and is a common haplotype found in Caucasians but present in