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CFTRhigh and CFTRlow clones show differences in open chromatin at the CFTR locus. Open chromatin mapping of 16HBE14o− WT (black) and the mean of two clones each of CFTRhigh (clones 4 and 7, brown) and CFTRlow (clones 3 and 12, blue) cells, mapped to the hg19 genome build. Clonal cells were collected at two non‐sequential passages. Specific sites where chromatin is more open in CFTRhigh or CFTRlow clones are marked by arrows.
