Comparison of gene expression profiles revealed that UBTF::ATXN7L3 rearranged cases in our cohort match to a recently described BCP-ALL subtype, which so far was identified by increased expression of the homeobox transcription factor CDX2 (‘CDX2 high’ ALL) [2] (Supplementary Fig. S1B). Here, UBTF is linked to acute lymphoblastic leukemia.