associates with corepressors via a smooth muscle myosin heavy-chain domain; inversion(16) is one of the most frequent chromosomal translocations found in acute myeloid leukemia (AML), occurring in over 8% of AML cases; this translocation results in a protein product that fuses the first 165 amino acids of core binding factor beta to the coiled-coil region of a smooth muscle myosin heavy chain (CBFbeta/SMMHC)