7497
In this study, we investigated the regulation of costimulation-induced mitogen-activated protein kinase ( MAPK ) activation in primary mouse T cells .
 ( protein: MAPK, None) , ( protein: mitogen-activated protein kinase, None) , ( cell type: primary mouse T cells, 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: MAPK, None) , ( protein: mitogen-activated protein kinase, None) , ( cell type: primary mouse T cells, None) 