10903
In combination, EBF and E47 induce efficient expression of the endogenous immunoglobulin surrogate light chain genes , lambda5 and VpreB , whereas other pre-B cell-specific genes remain silent.
 ( protein: E47, None) , ( protein: EBF, None) , ( DNA: pre-B cell-specific genes, None) , ( DNA: lambda5, None) , ( DNA: endogenous immunoglobulin surrogate light chain genes, None) , ( DNA: VpreB, 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: E47, None) , ( protein: EBF, None) , ( DNA: pre-B cell-specific genes, None) , ( DNA: lambda5, None) , ( DNA: endogenous immunoglobulin surrogate light chain genes, None) , ( DNA: VpreB, None) 