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We have developed a monoclonal antibody , Yae , which is specific for Pan/ E2A proteins , and have used the Yae antibody to examine a variety of endocrine and nonendocrine cell lineages for differences in Pan/ E2A protein expression , subcellular localization, and heteromeric complex formation .
 ( protein: E2A protein, None) , ( protein: Yae, None) , ( protein: Pan/ E2A proteins, None) , ( protein: Yae antibody, None) , ( protein: monoclonal antibody, None) , ( protein: E2A proteins, None) , ( protein: Yae, 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: E2A protein, None) , ( protein: Yae, None) , ( protein: Pan/ E2A proteins, None) , ( protein: Yae antibody, None) , ( protein: monoclonal antibody, None) , ( protein: E2A proteins, None) , ( protein: Yae, None) 