Positive Control: 293T, A431, HeLa, HepG2, Jurkat, Raji, NCI-H929, Neuro2A, C8D30, NIH-3T3, Raw264.7, C2C12, mouse liver Predicted Reactivity: Rat (100%), Bovine (92%) Store product as a concentrated solution. Centrifuge briefly prior to opening the vial