Of note, the rescue of neutropenia in this competitive setting (Supplementary Fig. 4C) resulted in the normalization of CD45.2 HSPC frequencies (Supplementary Fig. 4D), confirming that altered frequencies in Cebpacre/+SbdsF/F mice (Fig. 3D) are the result of neutropenia and not HSPC intrinsic alterations. The gene discussed is PSMA7; the disease is Decreased total neutrophil count.