tokens: In vivo genomic DMS footprinting revealed upstream of the major transcription initiation sites , the presence of at least three protein binding sites , two of which were constitutively occupied .
folded_tokens: in vivo genomic dms footprinting revealed upstream of the major transcription initiation sites , the presence of at least three protein binding sites , two of which were constitutively occupied .
labels: B-other_name I-other_name I-other_name I-other_name I-other_name O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O O