3440
p21(ras) , a guanine nucleotide binding factor , mediates T-cell signal transduction through PKC -dependent and PKC -independent pathways .
 ( protein: guanine nucleotide binding factor, None) , ( protein: PKC, None) , ( protein: p21(ras), None) , ( protein: PKC, 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: guanine nucleotide binding factor, None) , ( protein: PKC, None) , ( protein: p21(ras), None) , ( protein: PKC, None) 