11953
Western blot and immunoprecipitation studies using rabbit anti-C/EBP-epsilon antibodies raised against the N-terminal portion of C/EBP-epsilon ( amino acids 1 to 115 ) showed that C/EBP-epsilon is a 32-kDa nuclear phosphoprotein .
 ( protein: N-terminal portion, None) , ( protein: C/EBP-epsilon, None) , ( protein: C/EBP-epsilon, None) , ( protein: rabbit anti-C/EBP-epsilon antibodies, None) , ( protein: 32-kDa nuclear phosphoprotein, None) , ( protein: amino acids 1 to 115, 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: N-terminal portion, None) , ( protein: C/EBP-epsilon, None) , ( protein: C/EBP-epsilon, None) , ( protein: rabbit anti-C/EBP-epsilon antibodies, None) , ( protein: 32-kDa nuclear phosphoprotein, None) , ( protein: amino acids 1 to 115, None) 