Positive test controls include: HeLa, 22Rv1, U-87MG, Mouse liver. The target is usually found in the following locations: Cytoplasm. Immunogen sequence: MDSKYQCVKL NDGHFMPVLG FGTYAPAEVP KSKALEATKL AIEAGFRHID SAHLYNNEEQ VGLAIRSKIA DGSVKREDIF YTSKLWCNSH RP