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TCF-1 alpha is currently unique among the newly emerging family of DNA-binding regulatory proteins that share the HMG motif in that it is a highly tissue-specific RNA polymerase II transcription factor .
 protein: DNA-binding regulatory proteins; protein: transcription factor; protein: TCF-1 alpha; protein: highly tissue-specific RNA polymerase II; protein: HMG motif
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: DNA-binding regulatory proteins; protein: transcription factor; protein: TCF-1 alpha; protein: highly tissue-specific RNA polymerase II; protein: HMG motif