HLA Class I Histocompatibility Antigen, A-23 Alpha Chain

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

**Definition:** HLA class I histocompatibility antigen, A-23 alpha chain (365 aa, ~41 kDa) is encoded by the human HLA-A gene. This protein is involved in the presentation of foreign antigens to the immune system and may contribute to both maturation of NK cells and self-nonself discrimination during innate immune response.

**Synonyms:** - HLA Class I Histocompatibility Antigen, A*23 Alpha Chain - HLA-A Class I Antigen 23 - HLA-A Histocompatibility Type Antigen 23 - HLA-A*23 - HLA-A23 - HLA-A23 - HLA-A23 ANTIGEN - HLA-A23 Antigen - Human Leukocyte Antigen A23 - MHC Class I Antigen A*23 - Major Histocompatibility Complex, Class I, A23 Antigen