tokens: This sequence element was referred to as the BAT box and its deletion significantly reduced the activity of a CD20 promoter-CAT construct in B cells .
folded_tokens: this sequence element was referred to as the bat box and its deletion significantly reduced the activity of a cd20 promoter-cat construct in b cells .
labels: O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O O O O O O O O O O