HLA-C and autoimmune pancreatitis type 1: Another study by another Japanese group found six HLA class-associated variants, namely rs1143146 (HLA-A), rs1050716 (HLA-C), c.759_763delCCCCCinsTCCCG (HLA-C), rs1050451 (HLA-C), rs4154112 (HLA-DQB1), and rs1049069 (HLA-DQB1), to be associated with the relapse of IgG4-related pancreatitis [39].