2000
Both LAM -and LPS -inducible IL-6 promoter activity was localized to a DNA fragment , positions -158 to -49 , by deletion analysis and chloramphenicol acetyltransferase assay .
 ( protein: chloramphenicol acetyltransferase, None) , ( DNA: LPS -inducible IL-6 promoter, None) , ( DNA: -158 to -49, None) , ( DNA: DNA fragment, None) , ( protein: LAM, None) , ( protein: IL-6, 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: chloramphenicol acetyltransferase, None) , ( DNA: LPS -inducible IL-6 promoter, None) , ( DNA: -158 to -49, None) , ( DNA: DNA fragment, None) , ( protein: LAM, None) , ( protein: IL-6, None) 