ETS1 is a transcription factor of the ETS family that is expressed in T cells .
ets1 is a transcription factor of the ets family that is expressed in t cells .
B-protein_molecule O O B-protein_family_or_group I-protein_family_or_group O O B-protein_family_or_group I-protein_family_or_group O O O O B-cell_type I-cell_type O