9095
To explore long-term regulatory mechanisms , we investigated the induction of transcription factors on the gene expression level which may be important to substitute for metabolized transcription factor proteins after their activation.
 ( protein: transcription factors, None) , ( protein: metabolized transcription factor proteins, 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: transcription factors, None) , ( protein: metabolized transcription factor proteins, None) 