KAT6B and neoplasm: In the first case, the tumor cells carried a t(10;17)(q22;q21) as the sole karyotypic aberration, the molecular consequence of which was fusion of the KAT6B gene (also known as MORF and MYST4) on 10q22 with the KANSL1 gene (official full name: KAT8 regulatory NSL complex subunit 1) from 17q21 [6].