12291
Nuclear extracts of anti- CD15 cross-linked cells demonstrated enhanced levels of the transcriptional factor activator protein-1 , minimally changed nuclear factor-kappa B , and did not affect SV40 promoter specific protein-1 .
 ( protein: transcriptional factor activator protein-1, None) , ( cell type: CD15 cross-linked cells, None) , ( protein: SV40 promoter specific protein-1, None) , ( DNA: SV40 promoter, None) , ( protein: nuclear factor-kappa B, 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: transcriptional factor activator protein-1, None) , ( cell type: CD15 cross-linked cells, None) , ( protein: SV40 promoter specific protein-1, None) , ( DNA: SV40 promoter, None) , ( protein: nuclear factor-kappa B, None) 