336
The results further demonstrated the activation of S6 kinase ( pp90rsk ), evidenced by phosphorylation of S6 and serum response factor (SRF) peptides , in PWM treated B cells .
 ( protein: PWM, None) , ( cell line: PWM treated B cells, None) , ( protein: S6 kinase, None) , ( protein: S6, None) , ( protein: pp90rsk, 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: PWM, None) , ( cell line: PWM treated B cells, None) , ( protein: S6 kinase, None) , ( protein: S6, None) , ( protein: pp90rsk, None) 