Characterization of cMYB- or HBS1L-expressing clones isolated from K562 cells. (A) K562 refers to the background gene expression; vector refers to the gene expression of clones transfected with vector alone with the error bars referring to the SD. MYB and HBS1L refer to MYB and HBS1L transfectants, respectively. Myb-1 to Myb-7 and HBS-1 to HBS-7 refer to different clones transfected with cMYB or HBS1L cDNA, respectively, with their levels of gene expression indicated. (B) γ-Globin expression of cMYB or HBS1L transfectants. (C) Correlations of γ-globin gene expression with either cMYB or HBS1L expression. The data points include all values from K562, vector-alone, and cMYB or HBS1L transfectants.