5155
Interactions of a transcriptional activator in the env gene of the mouse mammary tumor virus with activation-dependent, T cell-specific transacting factors .
 ( DNA: env gene, None) , ( DNA: transcriptional activator, None) , ( protein: activation-dependent, T cell-specific transacting factors, 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: env gene, None) , ( DNA: transcriptional activator, None) , ( protein: activation-dependent, T cell-specific transacting factors, None) 