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Purification of TCF-1 alpha , a T-cell-specific transcription factor that activates the T-cell receptor C alpha gene enhancer in a context-dependent manner.
 DNA: T-cell receptor C alpha gene enhancer; protein: TCF-1 alpha; 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:
 DNA: T-cell receptor C alpha gene enhancer; protein: TCF-1 alpha; protein: T-cell-specific transcription factor