8133
Relative expressions of SERCA 2 and 3 isoforms and Ras-related protein (Rap) 1 in platelet membranes were determined by Western immunoblots .
 ( protein: SERCA, None) , ( protein: Ras-related protein (Rap) 1, 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: SERCA, None) , ( protein: Ras-related protein (Rap) 1, None) 