11214
Further, Tax1 coimmunoprecipitated with NF-Y from nuclear extracts of HTLV-1-transformed cells , providing evidence for in vivo interaction of Tax1 and NF-YB .
 ( protein: Tax1, None) , ( protein: NF-Y, None) , ( protein: NF-YB, None) , ( protein: Tax1, None) , ( cell type: HTLV-1-transformed cells, 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: Tax1, None) , ( protein: NF-Y, None) , ( protein: NF-YB, None) , ( protein: Tax1, None) , ( cell type: HTLV-1-transformed cells, None) 