TET2 mRNA expression. (A) TET2 mRNA expression in fractions of healthy bone marrows (n = 5). Error bars represent SD of 3 replicates used for each group. (B) TET2 mRNA expression in CD34+ cells derived from controls (n = 6) and patients with TET2 WT and TET2 mutants (n = 16). ● represent TET2 WT patients; ○, TET2-mutated patients; and —, mean for each group.