Significance
Expression of ZNF384 FO early in hematopoiesis results in binding and deregulation of key hematopoietic regulators, skewing of hematopoiesis, and priming for leukemic transformation. These results reveal the interplay between cell of origin and expression of ZNF384 FO to mediate lineage ambiguity and leukemia development. This article is highlighted in the In This Issue feature, p. 171.