6094
Collectively , these data identify a role for the vWA domain of Ku80 and a molecular mechanism by which DNA ligase proficient complexes are assembled during NHEJ in mammalian cells , and reveal APLF to be a structural component of this critical DSB repair pathway .
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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:
 None