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In order to elucidate the role of c-myb gene in erythroid differentiation of K562 cell induced by hemin ( Hm ) and erythropoietin ( Epo ), we constructed recombinant plasmid that could produce antisense myb RNA after induction with dexamethasone .
 ( protein: erythropoietin, None) , ( DNA: recombinant plasmid, None) , ( protein: Hm, None) , ( protein: Epo, None) , ( RNA: antisense myb RNA, None) , ( DNA: c-myb gene, None) , ( protein: hemin, None) , ( cell line: K562 cell, 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: erythropoietin, None) , ( DNA: recombinant plasmid, None) , ( protein: Hm, None) , ( protein: Epo, None) , ( RNA: antisense myb RNA, None) , ( DNA: c-myb gene, None) , ( protein: hemin, None) , ( cell line: K562 cell, None) 