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.
--------
Question: 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 .

Answer: fusion protein

Question: To investigate the role of costimulation of OX40 in human immunodeficiency virus type 1 ( HIV - 1 ) infection by its natural ligand , gp34 , the OX40 - transfected ACH - 2 cell line , ACH - 2 / OX40 , chronically infected with HIV - 1 , was cocultured with paraformaldehyde ( PFA ) - fixed gp34 - transfected mouse cell line , SV - T2 / gp34 .

Answer: HIV - 1

Question: The peptide also inhibited redistribution of 5 - lipoxygenase from the cytosol to the nuclear membrane of HL - 60 cells stimulated by A23187 .

Answer:
5 - lipoxygenase