MLLT1 and acute myeloid leukemia: Fusion-driven genomic subtypes of AML identified (n = 3) were: RUNX1::RUNX1T1, KMT2Ar (KMT2A::MLLT1, KMT2A::MLLT10; KMT2A:USP2), and NUP98::NSD1 (Table 1 and Supplementary Table 1).