Positive test controls include: K-562, HeLa, A-549, C6, Mouse testis. The target is usually found in the following locations: Nucleus. Immunogen sequence: MVSKRRLSKS EDKESLTEDA SKTRKQPLSK KTKKSHIANE VEENDSIFVK LLKISGIILK TGESQNQLAV DQIAFQKKLF QTLRRHPSYP