To define the spectrum of alterations common at relapse, the researchers in this study performed integrated profiling of 136 relapsed pediatric AML cases with RNA sequencing (RNA-seq), whole-genome sequencing, and target-capture sequencing. In addition, well-characterized fusion oncoproteins were identified, as were somatic mutations in UBTF (upstream binding transcription factor). See the results from the late-breaking abstract being presented at the ASH Annual Meeting & Exhibition.