18938
Depletion of Mre11 or CtIP , antibody - mediated inhibition of Mre11 , or small - molecule inhibition of MRN using mirin results in metaphase chromosome alignment defects in Xenopus egg extracts .
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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