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TGF-β1 increases H3K4me1/2/3 levels at p21 gene promoter in RMC. ChIP assays performed with H3K4me1, H3K4me2, and H3K4me3 antibodies normalized to input DNA. Results are expressed as fold over control (mean ± SEM; # P < 0.05 versus ctrl, n = 3).
