3927
In addition, immunoprecipitation analyses demonstrate that substantial and similar molar amounts of TATA-binding protein ( TBP ) and TFIIIB90 can weakly associate with PTF at low salt conditions , but this association is dramatically reduced at high salt concentrations .
 ( protein: TBP, None) , ( protein: PTF, None) , ( protein: TATA-binding protein, None) , ( protein: TFIIIB90, 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: TBP, None) , ( protein: PTF, None) , ( protein: TATA-binding protein, None) , ( protein: TFIIIB90, None) 