HLA-DR53 Antigen

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

**Definition:** HLA-DR53 antigen is a set of polymorphic glycoproteins encoded by the human HLA-DRB4 gene. This protein is the beta subunit of the major histocompatibility complex, class II DR protein, which is expressed primarily in lymphoid cells and functions to present antigens for CD4+ T lymphocytes.

**Synonyms:** - HLA Class II Histocompatibility Antigen, DRB4 Beta Chain - HLA-DR53 - HLA-DR53 ANTIGEN