5142
Like IkappaBalpha , Tax -mediated breakdown of IkappaBbeta in transfected T lymphocytes is blocked either by cell-permeable proteasome inhibitors or by mutation Of IkappaBbeta at two serine residues present within its N-terminal region .
 ( protein: IkappaBalpha, None) , ( protein: IkappaBbeta, None) , ( cell line: transfected T lymphocytes, None) , ( protein: N-terminal region, None) , ( protein: Tax, None) , ( protein: IkappaBbeta, 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: IkappaBalpha, None) , ( protein: IkappaBbeta, None) , ( cell line: transfected T lymphocytes, None) , ( protein: N-terminal region, None) , ( protein: Tax, None) , ( protein: IkappaBbeta, None) 