1630
RJ 2.2.5 is a human B cell mutant derived from the Burkitt lymphoma Raji cell which is defective in the AIR-1 locus function .
 ( cell line: RJ 2.2.5, None) , ( cell line: human B cell mutant, None) , ( cell line: Burkitt lymphoma Raji cell, 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 line: RJ 2.2.5, None) , ( cell line: human B cell mutant, None) , ( cell line: Burkitt lymphoma Raji cell, None) 