A number of ELISA Kits are available that target RT1-Ba, an alias of the protein, major histocompatibility complex, class II, DQ alpha 1. The human protein, encoded by the gene HLA-DQA1, is a member of the MHC class II family. The protein's cellular localization is indicated to be membrane-associated. Additional synonyms or past names for this protein may include: CELIAC1, DQ-A1, DQA1, HLA-DQA. Homology is conserved in other species, such as Mouse, Rat, Frog.