Tumor Necrosis Factor Receptor Superfamily, Member 9

**Definition:** A member of the tumor necrosis factor receptor superfamily that is specific for 4-1BB LIGAND. It is found in a variety of immune cell types including activated T-LYMPHOCYTES; NATURAL KILLER CELLS; and DENDRITIC CELLS. Activation of the receptor on T-LYMPHOCYTES plays a role in their expansion, production of cytokines and survival. Signaling by the activated receptor occurs through its association with TNF RECEPTOR-ASSOCIATED FACTORS.

**Tree numbers:** - D12.776.543.750.705.852.760.220

**Synonyms:** - 4-1BB Receptor - CD137 Antigen - 4-1BB Receptors - Antigens, CD137 - TNFRSF9 Receptor - CD137 Antigens