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Lastly, the different mobilities of osteoblast nuclear extract-DNA complexes compared with T-cell nuclear extract-DNA complexes , along with the inability of OSF2 to be upregulated by retinoic acid , unlike the other PEBP2 alpha factors , suggest that OSF2 is a new member of this family of transcription factors .
 protein: transcription factors; protein: T-cell nuclear extract-DNA complexes; protein: OSF2; protein: osteoblast nuclear extract-DNA complexes; protein: PEBP2 alpha factors; protein: OSF2
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: T-cell nuclear extract-DNA complexes; protein: OSF2; protein: osteoblast nuclear extract-DNA complexes; protein: PEBP2 alpha factors; protein: OSF2