15009
The divergent effects of hemin and TPA on gene expression in K562 cells are mediated, in part, by their contrasting effects on the transcription factor NF-E2 .
 ( protein: NF-E2, None) , ( cell line: K562 cells, None) , ( protein: transcription factor, 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: NF-E2, None) , ( cell line: K562 cells, None) , ( protein: transcription factor, None) 