6513
Multiple proteins exhibiting ARRE-2 binding activity have been isolated, including a heterodimer from stimulated T-cell nuclear extracts consisting of Mr = 90 000 ( NF90 ) and Mr = 45 000 ( NF45 ) subunits.
 ( protein: NF90, None) , ( DNA: ARRE-2, None) , ( protein: heterodimer, None) , ( protein: NF45, 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: NF90, None) , ( DNA: ARRE-2, None) , ( protein: heterodimer, None) , ( protein: NF45, None) 