GATA2 and chronic myelomonocytic leukemia: The expression of the Gata2 gene in the LSK cells of G2-/+ mice was reduced by approximately 50% of the wild-type level34 contrast, G2fGN/fGN mice that harbor approximately 20% of the GATA2 expression of wild-type mice are prone to develop progressive myelomonocytosis resembling CMML without leukocytopenia36.