1783
We have recently identified two regulatory elements in the murine immunoglobulin heavy-chain (IgH) enhancer , pi and microB , which exhibit striking similarity to binding sites for ets-related proteins .
 ( DNA: ets-related proteins, None) , ( DNA: microB, None) , ( DNA: pi, None) , ( DNA: binding sites, None) , ( DNA: murine immunoglobulin heavy-chain (IgH) enhancer, 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: ets-related proteins, None) , ( DNA: microB, None) , ( DNA: pi, None) , ( DNA: binding sites, None) , ( DNA: murine immunoglobulin heavy-chain (IgH) enhancer, None) 