HLA Class I Histocompatibility Antigen, B-7 Alpha Chain

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

**Definition:** HLA class I histocompatibility antigen, B-7 alpha chain protein (362 aa, ~40 kDa) is encoded by the human HLA-B gene. This protein is involved in the presentation of foreign antigens to the immune system. It is associated with susceptibility to ankylosing spondylitis, Behcet syndrome and carbamazepine-induced Stevens-Johnson syndrome.

**Synonyms:** - HLA Class I Histocompatibility Antigen, B*07 Alpha Chain - HLA-B7 Antigen - MHC Class I Antigen B*7