4-1BB Ligand/TNFSF9: cDNA Clones

4-1BB Ligand is a type II transmembrane glycoprotein belonging to the TNF superfamily (TNFSF) and has been designated TNFSF9. 4-1BB Ligand is predominantly expressed on activated antigen presenting cells such as B cells, macrophages and dendritic cells. It is also expressed on most Tand B lymphoma cell lines.