MLLT3 and acute myeloid leukemia: However, although we found a significant correlation between MECOM and IL12RB2 expression (R > 0.5, p > 0.2) for patients with KMT2A-r and KMT2A-MLLT3 alterations in all AML databases, we did not see any correlation between INPP4B and MECOM expression in adult patients with KMT2A-MLLT3 (BEAT and LEUCEGENE cohorts).