14985
Our results are consistent with the view that the DNA-binding activity LEF1/BCF1 is a homodimer of E2A proteins ; the selective appearance of this putative cell-specific transcription factor in B lymphoid cells seems to be attributable, at least in part, to the elevated E2A protein concentrations in these cells.
 ( protein: LEF1/BCF1, None) , ( protein: E2A protein, None) , ( cell type: B lymphoid cells, None) , ( protein: homodimer of E2A proteins, 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: LEF1/BCF1, None) , ( protein: E2A protein, None) , ( cell type: B lymphoid cells, None) , ( protein: homodimer of E2A proteins, None) 