959
Simultaneous activation of Ig and Oct-2 synthesis and reduction of surface MHC class II expression by IL-6 .
 ( protein: IL-6, None) , ( protein: Ig, None) , ( protein: MHC class II, None) , ( protein: Oct-2, 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: IL-6, None) , ( protein: Ig, None) , ( protein: MHC class II, None) , ( protein: Oct-2, None) 