Human 5F7 does not show any significant DNaseI hypesensitivity in the seven cell lines tested (CD4+ T cells, GM06990 lymphoblastoid, HeLa S3 cervical carcinoma, HepG2 liver carcinoma, H9 human embryonic stem, IMR90 human fibroblast, K562 myeloid leukemia-derived). The gene discussed is CD4; the disease is myeloid leukemia.