Tumor Necrosis Factor Ligand Superfamily Member 9

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

**Definition:** Tumor necrosis factor ligand superfamily member 9 (254 aa, ~27 kDa) is encoded by the human TNFSF9 gene. This protein plays a role in the costimulation of T-cells.

**Synonyms:** - 4-1BB Ligand - 4-1BB-L - 4-1BBL - Receptor 4-1BB Ligand - TNFSF9 - Tumor Necrosis Factor Ligand 5A