This sequence motif is a binding site for nuclear proteins , the so-called octamer transcription factors ( Oct or OTF factors ) .
this sequence motif is a binding site for nuclear proteins , the so-called octamer transcription factors ( oct or otf factors ) .
O B-DNA_family_or_group I-DNA_family_or_group O O O O O B-protein_family_or_group I-protein_family_or_group O O O B-protein_family_or_group I-protein_family_or_group I-protein_family_or_group O B-protein_family_or_group O B-protein_family_or_group I-protein_family_or_group O O