11836
EGF treatment induced IgM production in cells transfected with an intact gp130 cytoplasmic tail , but not in untransfected cells or cells transfected with a cytoplasmic tail lacking all four signal transducers and activators of transcription ( Stat ) binding sites .
 ( protein: Stat, None) , ( protein: signal transducers and activators of transcription ( Stat ) binding sites, None) , ( cell line: untransfected cells, None) , ( protein: signal transducers and activators of transcription, None) , ( protein: IgM, None) , ( protein: gp130 cytoplasmic tail, None) , ( protein: cytoplasmic tail, 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, None) , ( protein: signal transducers and activators of transcription ( Stat ) binding sites, None) , ( cell line: untransfected cells, None) , ( protein: signal transducers and activators of transcription, None) , ( protein: IgM, None) , ( protein: gp130 cytoplasmic tail, None) , ( protein: cytoplasmic tail, None) 