Ectopic ALF1 and E2A proteins required intact E ( gre ) motifs for mediating transcriptional activation .
ectopic alf1 and e2a proteins required intact e ( gre ) motifs for mediating transcriptional activation .
O B-protein_complex O B-protein_family_or_group I-protein_family_or_group O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O B-other_name I-other_name O