HLA Class II Histocompatibility Antigen, DR Beta 3-0101 Chain

**Semantic type:** Amino Acid, Peptide, or Protein

**Definition:** HLA class II histocompatibility antigen, DR beta 3-0101 chain (266 aa, ~30 kDa) is encoded by the human HLA-DRB3 gene. This protein plays a role in antigen presentation. Expression of this serotype is associated with type 1 diabetes mellitus, sarcoidosis, Lofgren syndrome and Graves disease.

**Synonyms:** - DR52a - HLA Class II Histocompatibility Antigen, DRB3-0101 Beta Chain - HLA class II Histocompatibility Antigen, DR Beta 3 Chain - HLA-DRB3*0101 - HLA-DRB3*01:01 - MHC Class II Antigen DRB3 - MHC Class II Antigen DRB3*0101