2849
Upon transfection into Nb2 T cells , 1.7 kilobases (kb) of IRF-1 5'-flanking DNA linked to a chloramphenicol acetyl transferase ( CAT ) reporter gene mediated a 30-fold induction of CAT enzyme activity in response to 24 h of PRL stimulation .
 ( DNA: chloramphenicol acetyl transferase ( CAT ) reporter gene, None) , ( protein: chloramphenicol acetyl transferase, None) , ( protein: IRF-1, None) , ( protein: CAT, None) , ( DNA: IRF-1 5#$%#-flanking DNA, None) , ( protein: CAT enzyme, None) , ( protein: CAT, None) , ( cell line: Nb2 T cells, None) , ( protein: PRL, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( DNA: chloramphenicol acetyl transferase ( CAT ) reporter gene, None) , ( protein: chloramphenicol acetyl transferase, None) , ( protein: IRF-1, None) , ( protein: CAT, None) , ( DNA: IRF-1 5#$%#-flanking DNA, None) , ( protein: CAT enzyme, None) , ( protein: CAT, None) , ( cell line: Nb2 T cells, None) , ( protein: PRL, None) 