11705
Pax-5a was detectable in pro- , pre- , and mature B-cell lines , but not in two plasmacytomas ; Pax-5b was shown to be present at low levels in mature B-cell lines and, unexpectedly, in one plasma cell line, but not in pro-B-cell or T-cell lines .
 ( protein: Pax-5a, None) , ( protein: Pax-5b, None) , ( cell line: mature B-cell lines, 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: Pax-5a, None) , ( protein: Pax-5b, None) , ( cell line: mature B-cell lines, None) 