DNA from BMNC samples of 24 patients (17 MDS and 7 AML-MR) were assessed for the presence of pathogenic variants of TET2 using exome sequencing, where 7 of the 24 samples (5 MDS and 2 AML-MR) tested positive (Supplementary Table 2). The gene discussed is TET2; the disease is myelodysplastic syndrome.