3119
The protein from E. coli specifically converted dUTP to dUMP and did not react with other dNTPs or NTPs .
 None
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:  
Answer:
 None