has part in taxon MHC class II protein complex HLA-DQA1*05:09 chain HLA-DQB1*06:41 chain HLA-DQA1*05:09 protein complex HLA-DQB1*06:41 protein complex HLA-DQA1*05:09/DQB1*06:41 protein complex HLA-DQA1*0509/DQB1*0641 HLA-DQA1*05:09/DQB1*06:41 HLA-DQA10509/DQB10641 HLA-DQA105:09/DQB106:41 HLA-DQB1*06:41 complete molecule human