8528
RFX-B complements the predominant BLS complementation group ( group B ) and was found to be mutant in cell lines from this BLS group .
 ( DNA: RFX-B, None) , ( protein: BLS complementation group, None) , ( protein: group B, None) , ( cell line: cell lines, 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:
 ( DNA: RFX-B, None) , ( protein: BLS complementation group, None) , ( protein: group B, None) , ( cell line: cell lines, None) 