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That the c-myb oncogene product can interact synergistically with an EBV -encoded member of the leucine zipper protein family suggests c-myb is likely to engage in similar interactions with cellularly encoded transcription factors .
 protein: transcription factors; protein: leucine zipper; protein: EBV -encoded member; protein: leucine zipper protein family; protein: cellularly encoded transcription factors; DNA: c-myb; DNA: c-myb; protein: c-myb oncogene product
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: transcription factors; protein: leucine zipper; protein: EBV -encoded member; protein: leucine zipper protein family; protein: cellularly encoded transcription factors; DNA: c-myb; DNA: c-myb; protein: c-myb oncogene product