Therefore , a STAT1 transcription factor is activated by IFN-gamma synthesized and released upon stimulation of T lymphocyte populations .
therefore , a stat1 transcription factor is activated by ifn-gamma synthesized and released upon stimulation of t lymphocyte populations .
O O O B-protein_molecule B-protein_family_or_group I-protein_family_or_group O O O B-protein_molecule O O O O O O B-cell_type I-cell_type I-cell_type O