Differential expression of histone modifying enzymes. Unsupervised hierarchical clustering and heatmaps of the expression levels (log₁₀-transformed TPM values) of histone-modifying enzymes in hematopoietic cells, divided into (A) lysine acetyl transferases (KATs), (B) histone deacetylases (HDACs), (C) lysine methyl transferases (KMTs), and (D) lysine demethylases (KDMs).