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Mapping of the interaction site of the defective transcription factor in the class II major histocompatibility complex mutant cell line clone-13 to the divergent X2-box .
 ( protein: transcription factor, None) , ( cell line: class II major histocompatibility complex mutant cell line clone-13, None) , ( DNA: divergent X2-box, None) , ( protein: defective transcription factor, None) , ( protein: interaction site, 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: transcription factor, None) , ( cell line: class II major histocompatibility complex mutant cell line clone-13, None) , ( DNA: divergent X2-box, None) , ( protein: defective transcription factor, None) , ( protein: interaction site, None) 