12970
It was proposed that the mechanism of antiviral action of S9a was on the host cell, by blocking TNF-alpha transcription via a Tat -induced tar-independent loop , which decreases downstream NF-kappaB activation of HIV-1 long terminal repeat ( LTR ).
 ( protein: NF-kappaB, None) , ( DNA: HIV-1 long terminal repeat, None) , ( protein: TNF-alpha, None) , ( DNA: LTR, None) , ( protein: Tat, 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: NF-kappaB, None) , ( DNA: HIV-1 long terminal repeat, None) , ( protein: TNF-alpha, None) , ( DNA: LTR, None) , ( protein: Tat, None) 