9073
These include Fc epsilonRII ( CD23 ), 15-lipoxygenase , IL-1 receptor antagonist ( IL-1ra ), and type I and type II IL-1 receptors ( IL-1R ).
 ( protein: 15-lipoxygenase, None) , ( protein: IL-1R, None) , ( protein: Fc epsilonRII, None) , ( protein: IL-1ra, None) , ( protein: CD23, None) , ( protein: IL-1 receptor antagonist, 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: 15-lipoxygenase, None) , ( protein: IL-1R, None) , ( protein: Fc epsilonRII, None) , ( protein: IL-1ra, None) , ( protein: CD23, None) , ( protein: IL-1 receptor antagonist, None) 