tokens: A 7-base-pair mutation in the site B palindrome , which destroyed protein binding , resulted in increased expression from the human immunodeficiency virus type 1 long terminal repeat in T cells .
folded_tokens: a 7-base-pair mutation in the site b palindrome , which destroyed protein binding , resulted in increased expression from the human immunodeficiency virus type 1 long terminal repeat in t cells .
labels: O B-other_name I-other_name O O B-DNA_domain_or_region I-DNA_domain_or_region O O O O O O O O O O B-other_name O O B-virus I-virus I-virus O O O O O O B-cell_type I-cell_type O