5125
Despite these similar mRNA levels, BCL-6 protein expression was threefold to 34-fold higher in germinal center B cells than in resting B cells , suggesting that BCL-6 protein levels are controlled by translational or posttranslational mechanisms .
 ( protein: BCL-6, None) , ( protein: BCL-6, None) , ( cell type: germinal center B cells, None) , ( cell type: resting B cells, 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: BCL-6, None) , ( protein: BCL-6, None) , ( cell type: germinal center B cells, None) , ( cell type: resting B cells, None) 