tokens: 5' to the identified transcription start site are two CCAAT sequences and potential recognition sites for several transcription factors including Sp1 , AP-1 , AP-2 , and NF-kB .
folded_tokens: 5' to the identified transcription start site are two ccaat sequences and potential recognition sites for several transcription factors including sp1 , ap-1 , ap-2 , and nf-kb .
labels: O O O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O B-DNA_family_or_group I-DNA_family_or_group O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O B-protein_family_or_group I-protein_family_or_group O B-protein_molecule O B-protein_molecule O B-protein_molecule O O B-protein_molecule O