7736
One T-cell line derived from ATL leukemic cells , TL-Om1, displayed constitutive NF-kappaB activity , as well as enhanced degradation of IkappaBalpha , despite the lack of detectable Tax expression .
 ( cell line: T-cell line, None) , ( protein: Tax, None) , ( protein: IkappaBalpha, None) , ( protein: NF-kappaB, None) , ( cell type: leukemic cells, 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: T-cell line, None) , ( protein: Tax, None) , ( protein: IkappaBalpha, None) , ( protein: NF-kappaB, None) , ( cell type: leukemic cells, None) 