3161
Here we demonstrate that both in vitro-translated PU.1 and PU.1 from nuclear extracts bind to a specific site in the M-CSF receptor promoter just upstream from the major transcription initiation site .
 protein: M-CSF receptor; DNA: major transcription initiation site; protein: PU.1; protein: PU.1; protein: vitro-translated PU.1; protein: M-CSF; DNA: M-CSF receptor promoter
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: M-CSF receptor, major transcription initiation site, PU.1, PU.1, vitro-translated PU.1, M-CSF, M-CSF receptor promoter 
Answer:
 protein: M-CSF receptor; DNA: major transcription initiation site; protein: PU.1; protein: PU.1; protein: vitro-translated PU.1; protein: M-CSF; DNA: M-CSF receptor promoter