14671
Thus, the 55 kd TNFR plays a decisive role in the host's defense against microorganisms and their pathogenic factors .
 ( protein: 55 kd TNFR, 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: 55 kd TNFR, None) 