11757
We also report that the human T-cell leukemia virus type 1 ( HTLV-1 )-derived Tax trans-activator induces NF-kappaB activity in 1.3E2 , suggesting that this viral protein does not operate via the defective pathway .
 ( cell line: 1.3E2, None) , ( protein: Tax, None) , ( protein: human T-cell leukemia virus type 1 ( HTLV-1 )-derived Tax trans-activator, 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:
 ( cell line: 1.3E2, None) , ( protein: Tax, None) , ( protein: human T-cell leukemia virus type 1 ( HTLV-1 )-derived Tax trans-activator, None) , ( protein: NF-kappaB, None) 