1403
We have demonstrated that the monocyte-specific expression of the CSF-1 receptor is regulated at the level of transcription by a tissue-specific promoter whose activity is stimulated by the monocyte/B-cell-specific transcription factor PU.1 (D.-E.Zhang, C.J.Hetherington, H.-M.Chen, and D.G.Tenen, Mol.Cell. Biol.14:373-381, 1994).
 protein: PU.1; protein: CSF-1; protein: monocyte/B-cell-specific transcription factor; DNA: tissue-specific promoter; protein: CSF-1 receptor
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: PU.1, CSF-1, monocyte/B-cell-specific transcription factor, tissue-specific promoter, CSF-1 receptor 
Answer:
 protein: PU.1; protein: CSF-1; protein: monocyte/B-cell-specific transcription factor; DNA: tissue-specific promoter; protein: CSF-1 receptor