4942
Cotransfection of a CD44 promoter-chloramphenicol acetyltransferase reporter construct with an egr-1 expression vector resulted in a 6.5- to 8.5-fold induction of transcriptional activity relative to an empty expression vector .
 ( DNA: empty expression vector, None) , ( DNA: CD44 promoter-chloramphenicol acetyltransferase reporter construct, None) , ( protein: CD44, None) , ( DNA: egr-1 expression vector, None) , ( DNA: egr-1, 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: empty expression vector, None) , ( DNA: CD44 promoter-chloramphenicol acetyltransferase reporter construct, None) , ( protein: CD44, None) , ( DNA: egr-1 expression vector, None) , ( DNA: egr-1, None) 