6436
Human Toll-like receptor 2 ( TLR2 ) is a signaling receptor that responds to LPS and activates NF-kappaB .
 ( protein: signaling receptor, None) , ( protein: Human Toll-like receptor 2 ( TLR2 ), None) , ( protein: TLR2, None) , ( protein: NF-kappaB, 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: signaling receptor, None) , ( protein: Human Toll-like receptor 2 ( TLR2 ), None) , ( protein: TLR2, None) , ( protein: NF-kappaB, None) 