6348
We have studied two pre-formed hsp90 complexes that may participate in the assembly of PR complexes .
 ( protein: pre-formed hsp90 complexes, None) , ( protein: PR complexes, None) , ( protein: hsp90, None) , ( protein: PR, 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: pre-formed hsp90 complexes, None) , ( protein: PR complexes, None) , ( protein: hsp90, None) , ( protein: PR, None) 