ETV6 and CDKN1B are expressed in CK-AML with and without deletion in 12p13 (ETV6/del12p: 37.68 ± 12.95 RPKM, ETV6/no del12p: 71.63 ± 34.43 RPKM; CDKN1B/del12p: 15.19 ± 4.06 RPKM, CDKN1B/no del12p: 24.73 ± 5.86 RPKM). This evidence concerns the gene CDKN1B and acute myeloid leukemia.