Cell type–specific miRNA genes (clusters), their difference in expression, and differences in occupation of their promoter regions by five epigenetic marks. The data are presented as log₂ (fold difference HMEC/HMF). The color scale indicates whether the data behave as expected for HMEC-specific miRNAs (green) or HMF-specific miRNAs (red). The MIR424∼450B is the label for the MIR424/503/542/450A2/450A1/450B cluster.