One cDNA clone of a primary response gene , expressed upon macrophage differentiation , encoded for Egr-1 , a zinc finger transcription factor .
one cdna clone of a primary response gene , expressed upon macrophage differentiation , encoded for egr-1 , a zinc finger transcription factor .
O B-DNA_molecule I-DNA_molecule O O O O O O O O O O O O O B-protein_molecule O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O