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Time course for enrichment of chromatin marks at miR-200b, miR-200c, and miR-205 promoters in HBEC2 during carcinogen exposure and in lung cancer cell lines Calu6 and H1435. Active (H3K4me2) and repressive (H3K9me2, H3K27me3) chromatin marks and DNMT1 are quantified at the miRNA promoters. Mean ± SEM of triplicate qPCR assays.
