9970
Thus, our data establish that ATF/CREB factors functionally modulate histone H4 gene transcription at distal and proximal promoter elements .
 DNA: histone H4 gene; protein: ATF/CREB factors
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: histone H4 gene, ATF/CREB factors 
Answer:
 DNA: histone H4 gene; protein: ATF/CREB factors