1842
Individually or collectively, none of the three enhancer-binding proteins ( LEF-1 , Ets-1 , and TFE-3 ) could activate transcription in the absence of Sp1 .
 protein: Ets-1; protein: TFE-3; protein: LEF-1; protein: enhancer-binding proteins; protein: Sp1
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: Ets-1; protein: TFE-3; protein: LEF-1; protein: enhancer-binding proteins; protein: Sp1