Deletion mutants containing 1 . 3 , 0 . 6 , and 0 . 2 kb 5'-flanking DNA were incrementally less transcriptionally active , although 0 . 2 kb still mediated a 12-fold induction by PRL .
deletion mutants containing 1 . 3 , 0 . 6 , and 0 . 2 kb 5'-flanking dna were incrementally less transcriptionally active , although 0 . 2 kb still mediated a 12-fold induction by prl .
O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B-protein_molecule O