Tumor Necrosis Factor Receptor Superfamily Member 9

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

**Definition:** Tumor necrosis factor receptor superfamily member 9 (255 aa, ~28 kDa) is encoded by the human TNFRSF9 gene. This protein plays a role in receptor signal transduction in activated T-lymphocytes.

**Synonyms:** - 4-1BB Ligand Receptor - CD137 - CD137 Antigen - CDw137 - Receptor Protein 4-1BB - T Cell Antigen ILA - T-Cell Antigen 4-1BB Homolog - T-Cell Antigen ILA - TNFRSF9