9918
In the present work, we have investigated the mechanism(s) whereby Tax transactivates the c-sis/PDGF-B proto-oncogene .
 ( protein: Tax, None) , ( protein: c-sis/PDGF-B, None) , ( DNA: c-sis/PDGF-B proto-oncogene, 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: Tax, None) , ( protein: c-sis/PDGF-B, None) , ( DNA: c-sis/PDGF-B proto-oncogene, None) 