Recombinant protein corresponding to Arg71-Glu254 from human 4-1BB, expressed in E. coli.
4-1BB ligand (4-1BBL, also CD137L) is a 32kD type II transmembrane protein that belongs to TNF superfamily (TNFSF) of molecules. 1-4 The human 4-1BBL cDNA encodes a 254aa protein that contains a 25aa N-terminal cytoplasmic domain, a 23aa transmembrane se