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To identify transcription factors binding to PRE-I , we screened a cDNA expression library from Jurkat T cells and isolated a cDNA encoding nuclear factor (NF)-IL6 (also known as C/EBP beta ).
 DNA: cDNA; protein: C/EBP beta; protein: (NF)-IL6; protein: transcription factors; cell line: Jurkat T cells; DNA: cDNA expression library; cell type: T cells; DNA: PRE-I; protein: nuclear 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: cDNA; protein: C/EBP beta; protein: (NF)-IL6; protein: transcription factors; cell line: Jurkat T cells; DNA: cDNA expression library; cell type: T cells; DNA: PRE-I; protein: nuclear factor