Positive test controls include: HepG2, mouse liver. The target is usually found in the following locations: Nucleus. Immunogen sequence: RPGRYFLKSS PSTENMHFPS SISSQTRQSC ISTSASGLDT SALSVQGNFD LNSKSKLQEN FCTRSIQIPA NRSKTAMSKC PIFPMARSIS TSGPLDKEDT GRQKLIS