3319
However, mutation of the PU box had no effect in the T-cell line Jurkat , where none of the Spi-1 family members is expressed.
 ( protein: Spi-1 family members, None) , ( DNA: PU box, None) , ( cell line: T-cell line Jurkat, 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: Spi-1 family members, None) , ( DNA: PU box, None) , ( cell line: T-cell line Jurkat, None) 