RUNX1 and acute lymphoblastic leukemia: In the ETV6-RUNX1 subcategory of BCP-ALL, expression was also positively correlated (R2 = 0.26 and p < 0.0001, R2 = 0.16 and p < 0.01) (Figure 1b), but a similar analysis of MLL-rearranged BCP-ALLs showed no correlation, indicating that this may be subtype dependent.