Positive test controls include: A-549, Mouse kidney. The target is usually found in the following locations: Nucleus. Immunogen sequence: FPVGCSQLLK ESEKPLQTGL PTGLTENQSG GPLGVDSPSA ELDKKANLLK CEYCGKYAPA EQFRGSKRFC SMTCAKRYNV SCSHQFRLKR KKMKEFQEAN YARVRR