6290
Our findings suggest that directional nucleolar transit is important for the physiological function of AID and demonstrate that nuclear / nucleolar import and DNA cytosine deamination together define the biological activity of AID .
 Chemical: cytosine
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: cytosine