Sequence analysis revealed that PB1 is composed of adjacent binding sites for Ets and AP-1 transcription factors .
sequence analysis revealed that pb1 is composed of adjacent binding sites for ets and ap-1 transcription factors .
O O O O B-DNA_domain_or_region O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O B-protein_molecule O B-protein_molecule B-protein_family_or_group I-protein_family_or_group O