Recombinant Human TNFSF4/OX40 ligand/CD252 Protein is produced by Human cell expression system. The target protein is expressed with sequence (Gln51-Leu183) of human OX40 Ligand/TNFSF4/OX40L/CD252 (Accession P23510) fused with a 6*His tag at the N-termi