Gene expression analysis of transcription factors known to regulate globin gene expression. A) Gene expression patterns for established erythroid markers are shown. Note the different scales for the left and right Y-axis to reflect the magnitude of difference in gene expression. Shown is the mean ± SEM; *** = p < 0.001. B) Time-course curves of genes previously reported to be involved in γ-globin regulation are shown; * = p < 0.05; ** = p < 0.01. C) Graphed is the expression profiles for genes known to regulate β-globin expression. The raw data for the genes shown are included in Additional file 2: Table S1, Additional file 3: Table S2, Additional file 4: Table S3, Additional file 5: Table S4.