731
T cells express multiple isotypes of protein kinase C ( PKC ) and although it is well accepted that PKCs have an important role in T cell activation , little is known about the function of individual PKC isotypes .
 ( protein: protein kinase C, None) , ( protein: PKC isotypes, None) , ( protein: PKCs, None) , ( cell type: T cells, 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: protein kinase C, None) , ( protein: PKC isotypes, None) , ( protein: PKCs, None) , ( cell type: T cells, None) , ( protein: PKC, None) 