The chimeric proteins (CTCF N terminus - CTCFL zinc fingers - CTCFL C terminus; CTCFL N terminus - CTCFL zinc fingers - CTCF C terminus) were abbreviated as CLL and LLC where C stands for CTCF and L stands for CTCFL (Fig. 7a). The gene discussed is CTCFL; the disease is B-cell chronic lymphocytic leukemia.