5207
By using a SOX9 coding sequence polymorphism , expression of both SOX9 alleles has been demonstrated by the reverse transcriptase polymerase chain reaction in lymphoblastoid cells from one of the translocation cases .
 ( DNA: SOX9, None) , ( protein: reverse transcriptase, None) , ( cell type: lymphoblastoid cells, None) , ( DNA: SOX9, None) , ( DNA: SOX9 coding sequence polymorphism, 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:
 ( DNA: SOX9, None) , ( protein: reverse transcriptase, None) , ( cell type: lymphoblastoid cells, None) , ( DNA: SOX9, None) , ( DNA: SOX9 coding sequence polymorphism, None) 