CD40 Ligand

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

**Definition:** CD40 ligand (261 aa, ~29 kDa) is encoded by the human CD40LG gene. This protein is involved in both binding to CD40 and the modulation of B-cell function.

**Synonyms:** - CD154 - CD154 Antigen - CD40 Antigen Ligand - CD40-L - CD40-ligand - CD40L - CD40LG - HIGM1 - IMD3 - T Cell Antigen gp39 - T-B Cell-Activating Molecule - T-BAM - T-Cell Antigen Gp39 - TNF-Related Activation Protein - TNFSF5 - TRAP - Tumor Necrosis Factor Ligand Superfamily Member 5 - gp39