Protein expression analysis of transcription factors, LIN28B, and globins. Western blots showing expression of BCL11A (XL isoform and p.Glu485X) (A), MYB and LIN28B (B), KLF1 (C), LRF (D), β-globin (E), and γ-globin (F). β-tubulin was used as loading control. Protein extracts were derived from HUDEP1 cells (H1), HUDEP2 cells (H2), and patient HEPs (P).