Thus , Egr-1 seems to control the expression of downstream target genes not only as a transcriptional activator , but also as a repressor molecule .
thus , egr-1 seems to control the expression of downstream target genes not only as a transcriptional activator , but also as a repressor molecule .
O O B-protein_molecule O O O O O O B-DNA_family_or_group I-DNA_family_or_group I-DNA_family_or_group O O O O O O O O O O O B-protein_family_or_group I-protein_family_or_group O