14983
The detection of this protein selectively in extracts of lymphoid cells correlates with the presence of the E box -binding activity LEF1/BCF1 in these cells; this binding activity was previously shown to be efficiently recognized by antiserum directed against E2A gene products .
 DNA: E2A gene; cell type: lymphoid cells; protein: E2A gene products; DNA: E box; protein: LEF1/BCF1
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: E2A gene, lymphoid cells, E2A gene products, E box, LEF1/BCF1 
Answer:
 DNA: E2A gene; cell type: lymphoid cells; protein: E2A gene products; DNA: E box; protein: LEF1/BCF1