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We have recently identified and cloned TCF-1 , a T cell-specific transcription factor with specificity for the AACAAAG motif in the CD3 epsilon enhancer and for the TTCAAAG motif in the TCR alpha enhancer .
 protein: TCF-1; DNA: CD3 epsilon enhancer; DNA: TCR alpha enhancer; DNA: TTCAAAG motif; protein: T cell-specific transcription factor
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: TCF-1; DNA: CD3 epsilon enhancer; DNA: TCR alpha enhancer; DNA: TTCAAAG motif; protein: T cell-specific transcription factor