20788
Whilst the enzymes involved in BER are now well known and characterised , the role of the co - ordination of BER enzymatic activities in the cellular response to DNA damage and the mechanisms regulating this process are only now being revealed .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None