tokens: A previously unrecognized element , located downstream of the start site of transcription in the first exon of the DR alpha gene , has been defined that enhances promoter activity up to eightfold in a position-dependent manner .
folded_tokens: a previously unrecognized element , located downstream of the start site of transcription in the first exon of the dr alpha gene , has been defined that enhances promoter activity up to eightfold in a position-dependent manner .
labels: O O O O O O O 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-DNA_domain_or_region O O B-DNA_domain_or_region I-DNA_domain_or_region I-DNA_domain_or_region O O O O O O B-other_name I-other_name O O O O O B-other_name I-other_name O