HLA-DPA1 and myasthenia gravis: We therefore analyzed HLA-DP expression grouped by rs9277534 genotype in myocytes derived from transdifferentiated dermal fibroblasts from OP-MG and control MG subjects (Nel et al., 2019) and found that the G-allele increased HLA-DPB1 expression levels (Figure 7, p < 1 × 10−3).