12814
To study the regulatory mechanism of gp91phox gene expression in eosinophils, we transiently transfected eosinophil-committed HL-60-C15 cells with gp91phox promoter constructs , and identified a negative element from bp -267 to -246 of the gp91phox gene , the deletion of which caused an 83% increase in promoter activity .
 ( DNA: gp91phox gene, None) , ( DNA: gp91phox promoter constructs, None) , ( DNA: gp91phox gene, None) , ( cell line: eosinophil-committed HL-60-C15 cells, None) , ( DNA: -267 to -246, None) , ( DNA: negative element, 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:
 ( DNA: gp91phox gene, None) , ( DNA: gp91phox promoter constructs, None) , ( DNA: gp91phox gene, None) , ( cell line: eosinophil-committed HL-60-C15 cells, None) , ( DNA: -267 to -246, None) , ( DNA: negative element, None) 