8678
Tax , the viral protein , is thought to be crucial in the development of the disease, since it transforms healthy T cells in vitro and induces tumors in transgenic animals .
 ( cell type: healthy T cells, None) , ( protein: viral protein, None) , ( protein: Tax, 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:
 ( cell type: healthy T cells, None) , ( protein: viral protein, None) , ( protein: Tax, None) 