4893
A variety of cytokines and growth factors act through an induction of gene expression mediated by a family of latent transcription factors called STAT (signal transducers and activators of transcription) proteins .
 ( protein: STAT (signal transducers and activators of transcription) proteins, None) , ( protein: cytokines, None) , ( protein: latent transcription factors, None) , ( protein: STAT, None) , ( protein: growth factors, 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: STAT (signal transducers and activators of transcription) proteins, None) , ( protein: cytokines, None) , ( protein: latent transcription factors, None) , ( protein: STAT, None) , ( protein: growth factors, None) 