HLA Class II Histocompatibility Antigen, DQ Alpha 2 Chain

**Semantic type:** Amino Acid, Peptide, or Protein|Immunologic Factor

**Definition:** HLA class II histocompatibility antigen, DQ alpha 2 chain (255 aa, ~28 kDa) is encoded by the human HLA-DQA2 gene. This protein plays a role in MHC class II-dependent immune responses.

**Synonyms:** - DX Alpha Chain - HLA Class II Histocompatibility Antigen, DQ(6) Alpha Chain - HLA-DQA2 - HLA-DXA - MHC Class II DQA2 - Major Histocompatibility Complex, Class II, DQ Alpha 2