In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

[EX Q]:  In contrast , the CBFbeta - smooth muscle myosin heavy chain ( SMMHC ) fusion protein generated by the inv ( 16 ) associated with acute myeloid leukemias ( M4Eo ) can not rescue definitive hematopoiesis by Cbfb - deficient ES cells .
[EX A]: fusion protein

[EX Q]:  Thus , it was concluded that C / EBP alpha and - beta were able to bind to the C / EBP motif , and that C / EBP alpha bound to the motif in THP - 1 cells and C / EBP beta bound to that in the VD3 - treated HL - 60 cells .
[EX A]: C / EBP

[EX Q]:  RESULTS : In all cells tested , ER mRNA was expressed without prior in vitro stimulation .
[EX A]:
ER mRNA