HLA-DP4 Antigen

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

**Definition:** HLA-DP4 antigen is a protein complex of the major histocompatibility complex, class II DP protein in which the alpha subunit is encoded by the HLA-DPA1*0103 allele and the beta subunit serotype is encoded by either the *0401 allele or the *0402 allele of the HLA-DPB1 gene. This antigen represents the most common haplotype.

**Synonyms:** - HLA-DP4