13231
Interleukin -4 and -13 induce upregulation of the murine macrophage 12/15-lipoxygenase activity : evidence for the involvement of transcription factor STAT6 .
 ( protein: 12/15-lipoxygenase activity, None) , ( protein: transcription factor, None) , ( protein: STAT6, 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: 12/15-lipoxygenase activity, None) , ( protein: transcription factor, None) , ( protein: STAT6, None) 