tokens: We have isolated the 5' region of the ecto-5'-nucleotidase ( low K ( m ) 5'-NT ) gene and established that a 969-base pair ( bp ) fragment confers cell-specific expression of a CAT reporter gene that correlates with the expression of endogenous ecto-5'-NT mRNA and enzymatic activity .
folded_tokens: we have isolated the 5' region of the ecto-5'-nucleotidase ( low k ( m ) 5'-nt ) gene and established that a 969-base pair ( bp ) fragment confers cell-specific expression of a cat reporter gene that correlates with the expression of endogenous ecto-5'-nt mrna and enzymatic activity .
labels: O O O O B-DNA_domain_or_region I-DNA_domain_or_region O O B-protein_molecule O O O O O O O O O O O O O B-DNA_molecule I-DNA_molecule I-DNA_molecule I-DNA_molecule I-DNA_molecule I-DNA_molecule O O O O O B-DNA_molecule I-DNA_molecule I-DNA_molecule O O O O O O B-RNA_molecule I-RNA_molecule I-RNA_molecule O B-other_name I-other_name O