HLA-DQA1 and primary biliary cholangitis: Specifically, eight variants (DQA1*0401, DQB1*0301, DQB1*0402, DQB1*0602, DRB1*08, DRB1*0803, DRB1*11, and DRB1*1101) have been shown to be associated with PBC both in published GWAS and meta-analyses of candidate-gene association studies.