<unk>  belongs to the<unk>  class II beta chain paralogues. This class II molecule is a heterodimer consisting of an alpha (DQA) and a beta chain (DQB), both anchored in the membrane. It plays a central role in the immune system by presenting peptides derived from extracellular proteins. Class II molecules are expressed in antigen-presenting cells (APC: B lymphocytes, dendritic cells, macrophages).
HLA-DQB1
HLA-DQ1
C-ANCA
Rheumatoid factor
HLA B7-DR15-DQ6
ANA-12
CD4+/CD8+ ratio
Hh blood group