6043
Pax5 is predominantly transcribed from only one of its two alleles in early B-lymphoid progenitors and mature B cells , while it transiently switches to a biallelic mode of transcription in pre-B and immature B cells .
 ( cell type: early B-lymphoid progenitors, None) , ( cell type: mature B cells, None) , ( protein: Pax5, None) , ( DNA: alleles, 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 type: early B-lymphoid progenitors, None) , ( cell type: mature B cells, None) , ( protein: Pax5, None) , ( DNA: alleles, None) 