Positive test controls include: HeLa, U-251MG, MCF7. The target is usually found in the following locations: Nucleus. Immunogen sequence: EEFAYCWENF VYNEGQQFMP WYKFDENYAF LHRTLKEILR YLMDPDTFTF NFNNDPLVLR RRQTYLCYEV ERLDNGTWVL MDQHMGFLCN EAKNLLCGFY. This