2855
Hence, the PRL -induced biphasic expression of the IRF-1 gene appears to be controlled by separate PRL -responsive elements : elements in the first 0.2 kb of the IRF-1 promoter region act during early activation , and elements between 0.2 and 1.7 kb act in concert with the proximal 0.2-kb region during S phase progression .
 ( protein: PRL, None) , ( protein: IRF-1, None) , ( DNA: IRF-1 gene, None) , ( DNA: PRL -responsive elements, None) , ( protein: IRF-1, None) , ( DNA: IRF-1 promoter region, 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:
 ( protein: PRL, None) , ( protein: IRF-1, None) , ( DNA: IRF-1 gene, None) , ( DNA: PRL -responsive elements, None) , ( protein: IRF-1, None) , ( DNA: IRF-1 promoter region, None) , ( protein: PRL, None) 