9496
Repression of human immunodeficiency virus type 1 through the novel cooperation of human factors YY1 and LSF [published erratum appears in J Virol 1998 Feb;72(2):1709]
 ( protein: LSF, None) , ( protein: human factors, None) , ( protein: YY1, 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: LSF, None) , ( protein: human factors, None) , ( protein: YY1, None) 