Catalog number: SBB-PP0004, 25 μgHighly active protein complex that has been purified from human peripheral blood mononuclear cell (PBMC) . Immunoproteasome is recognized as a strong drug target for autoimmune disease and cancer.  This immunoproteasome is supplied at >95% purity and experiments should be carried out at 20S immunoproteasome concentrations between 2-5 nM.