Supplementary Figure 3: Protein silencing of HBG1 by dCas9-KRAB transcription factors targeted to the distal HS2 enhancer.

Western blot for γ-globin and GAPDH demonstrate globin silencing in K562 cells treated with dCas9-KRAB (dCK) and sgRNAs compared to non-transduced controls (No LV), no sgRNA controls, IL1RN-targeted sgRNA controls, and dCas9 (dC) with sgRNA (cropped from representative images from n = 3 biological replicates). Western blot for the FLAG epitope show dCas9 and dCas9-KRAB expression in transduced K562 cells.