12851
B cell lymphomas commonly display multiple somatic mutations clustering in the 5'-regulatory region of BCL-6 , a proto-oncogene encoding for a POZ/Zinc finger transcriptional repressor expressed in germinal center (GC) B cells and required for GC formation .
 ( protein: POZ/Zinc finger transcriptional repressor, None) , ( cell type: B cell lymphomas, None) , ( cell type: germinal center (GC) B cells, None) , ( protein: BCL-6, None) , ( DNA: 5#$%#-regulatory region, None) , ( DNA: proto-oncogene, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( protein: POZ/Zinc finger transcriptional repressor, None) , ( cell type: B cell lymphomas, None) , ( cell type: germinal center (GC) B cells, None) , ( protein: BCL-6, None) , ( DNA: 5#$%#-regulatory region, None) , ( DNA: proto-oncogene, None) 