Positive test controls include: HeLa, MCF7, Mouse brain. The target is usually found in the following locations: Nucleus. Immunogen sequence: IAVIGLTCRL DILELLEKRV KSRFSHRQIH LMNSFGFPQY VKIFKEQLSL PAEFPDKVFA EKWNENVQYL SEDRSVQEVL QKHFNISKNL RSLHMLLMLA LN