3162
Mutations in this site which eliminate PU.1 binding decrease M-CSF receptor promoter activity significantly in macrophage cell lines only.
 protein: M-CSF; cell line: macrophage cell lines; protein: PU.1; protein: M-CSF 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: M-CSF, macrophage cell lines, PU.1, M-CSF receptor 
Answer:
 protein: M-CSF; cell line: macrophage cell lines; protein: PU.1; protein: M-CSF receptor