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For example , in rodent cells , transfection using lipofection gives nearly WT end - joining in DNA - PKcs mutants and only mildly inhibited end - joining in Lig4 and Ku mutants .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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