(a) Bar plot showing the effects of NFIX CREs on the expression levels of NFIX and KLF1. Y-axis shows relative mRNA expression measured by real-time RT-qPCR in HUDEP-2 cells edited with ABEmax and the two indicated gRNAs. The expression levels were normalized by those from HUDEP-2 cells treated with ABEmax and non-targeting control gRNA (Ctrl) (n=3 independent experiments).
(b) β-Like globin gene cluster–associated HbFhigh gRNAs: Chromatin interaction loops, indicated by red arcs, were determined by H3K27ac Hi-ChIP in HUDEP-2 cells. gRNA -log(FDR) represents the difference in gRNA abundance between the HbFhigh and HbFlow populations. ATAC-seq analysis reflects chromatin openness.