tokens: The beta-casein promoter has been widely used to monitor the activation of STAT ( signal transducer and activator of transcription ) 5 since STAT5 was originally found as a mediator of PRL-inducible beta-casein expression .
folded_tokens: the beta-casein promoter has been widely used to monitor the activation of stat ( signal transducer and activator of transcription ) 5 since stat5 was originally found as a mediator of prl-inducible beta-casein expression .
labels: O B-protein_molecule O O O O O O O O O O B-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule I-protein_molecule O B-protein_molecule O O O O O O O B-other_name B-protein_molecule O O