14972
The cDNA hybridized to multiple transcripts in pre-B and B-cell lines , but transcripts were not detected at significant levels in plasmacytoma , T-cell , and nonlymphoid cell lines .
 ( cell line: pre-B, None) , ( cell line: nonlymphoid cell lines, None) , ( cell line: pre-B and B-cell lines, None) , ( cell line: T-cell, None) , ( cell line: plasmacytoma, None) , ( DNA: cDNA, None) , ( cell line: 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:
 ( cell line: pre-B, None) , ( cell line: nonlymphoid cell lines, None) , ( cell line: pre-B and B-cell lines, None) , ( cell line: T-cell, None) , ( cell line: plasmacytoma, None) , ( DNA: cDNA, None) , ( cell line: B-cell lines, None) 