9050
To determine how pol beta discriminates between anti - and syn - 8 - oxoG , we introduced a point mutation ( R283K ) to alter insertion specificity .
 Chemical: anti - and syn - 8 - oxoG
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: anti - and syn - 8 - oxoG