2130
While in most cell types, activation requires interaction of Tat with the unusual transcription element TAR , astrocytic glial cells support TAR -independent transactivation of HIV-1 transcription by Tat.
 ( DNA: transcription element, None) , ( cell type: astrocytic glial cells, None) , ( DNA: TAR, None) , ( DNA: TAR, 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: transcription element, None) , ( cell type: astrocytic glial cells, None) , ( DNA: TAR, None) , ( DNA: TAR, None) 