tokens: Cotransfection of a CD44 promoter-chloramphenicol acetyltransferase reporter construct with an egr-1 expression vector resulted in a 6 . 5- to 8 . 5-fold induction of transcriptional activity relative to an empty expression vector .
folded_tokens: cotransfection of a cd44 promoter-chloramphenicol acetyltransferase reporter construct with an egr-1 expression vector resulted in a 6 . 5- to 8 . 5-fold induction of transcriptional activity relative to an empty expression vector .
labels: O O O B-protein_molecule O O O O O O B-DNA_domain_or_region O O O O O O O O O O O O O O O O O O O B-DNA_molecule I-DNA_molecule I-DNA_molecule O