We show here that proerythroblasts and mature erythroid cells contain a diffusible activity ( TAG ) capable of transcriptional activation of GATA-1 and that this activity decreases during the terminal differentiation of erythroid cells .
we show here that proerythroblasts and mature erythroid cells contain a diffusible activity ( tag ) capable of transcriptional activation of gata-1 and that this activity decreases during the terminal differentiation of erythroid cells .
O O O O B-cell_type O B-cell_type I-cell_type I-cell_type O O B-other_name I-other_name O B-other_name O O O B-other_name I-other_name O B-protein_molecule O O O O O O O B-other_name I-other_name O B-cell_type I-cell_type O