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Erythroid-specific mRNAs encoding gamma-globin and erythroid delta-aminolevulinate synthase were found to be expressed in blasts from most of these cases, indicating that majorities of the blasts in M7 and TMD cases have erythroid and megakaryocytic phenotypes .
 ( cell type: blasts, None) , ( cell type: blasts, None) , ( RNA: Erythroid-specific mRNAs, None) , ( protein: gamma-globin, None) , ( protein: erythroid delta-aminolevulinate synthase, 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: blasts, None) , ( cell type: blasts, None) , ( RNA: Erythroid-specific mRNAs, None) , ( protein: gamma-globin, None) , ( protein: erythroid delta-aminolevulinate synthase, None) 