6284
Analysis of targets that could mediate these phenotypic changes indicated that c-Maf likely plays a key role in myeloid cell development through dual mechanisms; inhibition of a select set of c-Myb regulated targets, such as Bcl-2 and CD13/APN , coupled with the activation of as yet undefined differentiation-promoting genes .
 ( protein: c-Myb, None) , ( DNA: differentiation-promoting genes, None) , ( protein: c-Maf, None) , ( protein: CD13/APN, None) , ( protein: Bcl-2, 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: c-Myb, None) , ( DNA: differentiation-promoting genes, None) , ( protein: c-Maf, None) , ( protein: CD13/APN, None) , ( protein: Bcl-2, None) 